▸ 1 Sinharaja Forest Reserve 🇱🇰 Sri Lanka 4 Ceylon Pit Viper Lowland Hump-nosed Viper Russell's Viper Hump-nosed Viper ▸ 2 Bako National Park 🇲🇾 Malaysia 1 North Philippine Temple Pitviper ▸ 3 Kinabalu Park 🇲🇾 Malaysia 6 North Philippine Temple Pitviper Sabah Bamboo Pitviper Malcolm’s Pitviper Sumatra Pit Viper Chasen’s Mountain Pitviper Borneo Pit Viper ▸ 4 Emas National Park 🇧🇷 Brazil 5 Cerrado Lancehead Neotropical Rattlesnake Urutu Lancehead Brazilian Lancehead Mato Grosso Lancehead ▸ 5 El Triunfo 🇲🇽 Mexico 4 Godman's Montane Pit Viper Guatemala Palm Pit Viper Guatemalan Jumping Pitviper Fer-de-lance ▸ 6 Gunung Leuser National Park 🇮🇩 Indonesia 7 Wagler's Pit Viper Sumatran Palm Pit Viper Gunalen's Pitviper Hagen’s Pitviper Sabah Bamboo Pitviper Mangrove Viper Indo-Malayan mountain pitviper ▸ 7 Brownsberg Nature Park 🇸🇷 Suriname 2 Barba Amarilla Green Jararaca ▸ 8 Big Cypress National Preserve 🇺🇸 United States 3 Florida Cottonmouth Eastern Diamondback Rattlesnake Pygmy Rattlesnake ▸ 9 Death Valley National Park 🇺🇸 United States 4 Sidewinder Panamint Rattlesnake Western Rattlesnake Mohave Rattlesnake ▸ 10 Sepilok 🇲🇾 Malaysia 2 North Philippine Temple Pitviper Borneo Pit Viper ▸ 11 Congaree National Park 🇺🇸 United States 3 Northern Cottonmouth Eastern Copperhead Timber Rattlesnake ▸ 12 Komodo National Park 🇮🇩 Indonesia 2 White-lipped Island Pitviper Siamese Russell's Viper ▸ 13 Braulio Carrillo National Park 🇨🇷 Costa Rica 6 Fer-de-lance Rainforest Hog-nosed Viper Side-striped palm pit viper Black-speckled Palm Pit Viper Central American Bushmaster Picado's Pit Viper ▸ 14 Khao Sok National Park 🇹🇭 Thailand 4 Wagler's Pit Viper Sabah Bamboo Pitviper Malayan Pit Viper Indo-Malayan mountain pitviper ▸ 15 Big Bend National Park 🇺🇸 United States 5 Western Diamondback Rattlesnake Eastern Black-tailed Rattlesnake Mohave Rattlesnake Rock Rattlesnake Broad-banded Copperhead ▸ 16 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica 4 Side-striped palm pit viper Black-speckled Palm Pit Viper Fer-de-lance Slender Hognose Viper ▸ 17 Khao Yai National Park 🇹🇭 Thailand 4 Vogel’s Pit Viper Kramer's Pit Viper Siamese Russell's Viper White-lipped Pit Viper ▸ 18 Santa Rosa National Park 🇨🇷 Costa Rica 3 Slender Hognose Viper Central American Rattlesnake Southern Cantil ▸ 19 Cat Tien National Park 🇻🇳 Vietnam 3 Ruby-eyed Green Pitviper White-lipped Pit Viper Taiwanese Habu ▸ 20 Namib-Naukluft National Park 🇳🇦 Namibia 4 Peringuey's Adder Horned Adder Many-horned Adder Puff Adder ▸ 21 Tenorio Volcano National Park 🇨🇷 Costa Rica 4 Fer-de-lance Rainforest Hog-nosed Viper Side-striped palm pit viper Central American Jumping Pit Viper ▸ 22 Cuc Phuong National Park 🇻🇳 Vietnam 3 Taiwanese Habu Chinese Green Tree Viper White-lipped Pit Viper ▸ 23 Pico Bonito National Park 🇭🇳 Honduras 3 Rainforest Hog-nosed Viper Central American Jumping Pit Viper Fer-de-lance ▸ 24 Utría National Natural Park 🇨🇴 Colombia 4 Fer-de-lance Chocoan Forest Pit Viper Rainforest Hog-nosed Viper Chocoan Bushmaster ▸ 25 Amboró National Park 🇧🇴 Bolivia 6 Bolivian Lancehead Neotropical Rattlesnake Atlantic Forest Bushmaster Painted Lancehead Andean Lancehead Bothrops monsignifer ▸ 26 Guadalupe Mountains National Park 🇺🇸 United States 3 Western Diamondback Rattlesnake Eastern Black-tailed Rattlesnake Rock Rattlesnake ▸ 27 Serra da Canastra National Park 🇧🇷 Brazil 5 Neotropical Rattlesnake Marbled lancehead Jararaca Pintada Urutu Lancehead Brazilian Lancehead ▸ 28 Danum Valley Conservation Area 🇲🇾 Malaysia 2 North Philippine Temple Pitviper Sumatra Pit Viper ▸ 29 Saguaro National Park 🇺🇸 United States 6 Western Diamondback Rattlesnake Tiger Rattlesnake Western Black-tailed Rattlesnake Arizona Black Rattlesnake Mohave Rattlesnake Sidewinder ▸ 30 Tanjung Puting National Park 🇮🇩 Indonesia 1 North Philippine Temple Pitviper ▸ 31 Triglav National Park 🇸🇮 Slovenia 3 Adder Nose-horned Viper Asp Viper ▸ 32 Piedras Blancas National Park 🇨🇷 Costa Rica 3 Fer-de-lance White-tailed Hognose Viper Side-striped palm pit viper ▸ 33 Chirripó National Park 🇨🇷 Costa Rica 7 Side-striped palm pit viper Costa Rica Montane Pitviper Blotched Palm-pitviper Black-speckled Palm Pit Viper Fer-de-lance Talamancan Palm Pit Viper Central American Jumping Pit Viper ▸ 34 Cusuco National Park 🇭🇳 Honduras 4 Wilson's Montane Pitviper March's Palm Pit Viper Fer-de-lance Central American Jumping Pit Viper ▸ 35 Arenal Volcano National Park 🇨🇷 Costa Rica 4 Fer-de-lance Central American Jumping Pit Viper Rainforest Hog-nosed Viper Side-striped palm pit viper ▸ 36 Joshua Tree National Park 🇺🇸 United States 6 Southwestern Speckled Rattlesnake Sidewinder Western Rattlesnake Red Diamond Rattlesnake Mohave Rattlesnake Western Diamondback Rattlesnake ▸ 37 Everglades National Park 🇺🇸 United States 3 Florida Cottonmouth Eastern Diamondback Rattlesnake Pygmy Rattlesnake ▸ 38 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico 4 Red Diamond Rattlesnake Speckled Rattlesnake Lower California Rattlesnake Western Rattlesnake ▸ 39 Khao Luang National Park 🇹🇭 Thailand 4 Beautiful Pitviper Malayan Pit Viper Sabah Bamboo Pitviper Palm vit viper ▸ 40 Badlands National Park 🇺🇸 United States 1 Prairie Rattlesnake ▸ 41 La Tigra National Park 🇭🇳 Honduras 2 Wilson's Montane Pitviper Honduras Jumping Pit Viper ▸ 42 Sequoia and Kings Canyon National Parks 🇺🇸 United States 3 Western Rattlesnake Panamint Rattlesnake Sidewinder ▸ 43 Shenandoah National Park 🇺🇸 United States 2 Eastern Copperhead Timber Rattlesnake ▸ 44 Canaima National Park 🇻🇪 Venezuela 2 Barba Amarilla Speckled Forest Pit Viper ▸ 45 El Impenetrable National Park 🇦🇷 Argentina 2 Painted Lancehead Neotropical Rattlesnake ▸ 46 Chapada Diamantina National Park 🇧🇷 Brazil 4 Neotropical Rattlesnake Whitetail Lancehead Yarará Lancehead Caatinga Lancehead ▸ 47 Celaque National Park 🇭🇳 Honduras 3 Central American Rattlesnake Wilson's Montane Pitviper Honduras Jumping Pit Viper ▸ 48 Sundarbans National Park 🇮🇳 India 1 Spot-tailed Pitviper ▸ 49 Tatra National Park 🇸🇰 Slovakia 1 Adder ▸ 50 Great Smoky Mountains National Park 🇺🇸 United States 2 Eastern Copperhead Timber Rattlesnake ▸ 51 Cordillera Azul National Park 🇵🇪 Peru 4 Barba Amarilla Green Jararaca Atlantic Forest Bushmaster Small-eyed Toad-headed Pitviper ▸ 52 Garden Route National Park 🇿🇦 South Africa 4 Puff Adder Rhombic Night Adder Berg Adder Red Adder ▸ 53 Península Valdés 🇦🇷 Argentina 1 Patagonia Lancehead ▸ 54 Grand Canyon National Park 🇺🇸 United States 5 Western Rattlesnake Southwestern Speckled Rattlesnake Western Black-tailed Rattlesnake Mohave Rattlesnake Sidewinder ▸ 55 Podocarpus National Park 🇪🇨 Ecuador 5 Barba Amarilla Andean Forest-pitviper 🦎 Lojan Lancehead Speckled Forest Pit Viper Atlantic Forest Bushmaster ▸ 56 Corcovado National Park 🇨🇷 Costa Rica 3 Fer-de-lance Black-headed Bushmaster White-tailed Hognose Viper ▸ 57 Manuel Antonio National Park 🇨🇷 Costa Rica 1 Fer-de-lance ▸ 58 Eravikulam National Park 🇮🇳 India 2 Large-scaled Pit Viper Anamala Pit Viper ▸ 59 Manu National Park 🇵🇪 Peru 7 Barba Amarilla Green Jararaca Brazil's Lancehead Atlantic Forest Bushmaster Speckled Forest Pit Viper Andean Lancehead Small-eyed Toad-headed Pitviper ▸ 60 Volcán Barú National Park 🇵🇦 Panama 3 Black-speckled Palm Pit Viper Side-striped palm pit viper Costa Rica Montane Pitviper ▸ 61 Iguaçu National Park 🇧🇷 Brazil 6 Brazilian Lancehead Neotropical Rattlesnake Painted Lancehead Jararacussu Jararaca Pintada Yarará Lancehead ▸ 62 Periyar National Park 🇮🇳 India 2 Anamala Pit Viper Large-scaled Pit Viper ▸ 63 La Amistad International Park (Panama) 🇵🇦 Panama 10 Fer-de-lance Black-speckled Palm Pit Viper Side-striped palm pit viper Rainforest Hog-nosed Viper Central American Jumping Pit Viper Costa Rica Montane Pitviper Blotched Palm-pitviper Central American Bushmaster Lansberg's Hognose Viper Ujarran Hognose Viper ▸ 64 Montes Azules Biosphere Reserve 🇲🇽 Mexico 3 Central American Jumping Pit Viper Rainforest Hog-nosed Viper Fer-de-lance ▸ 65 Iguazú National Park 🇦🇷 Argentina 6 Brazilian Lancehead Neotropical Rattlesnake Jararacussu Painted Lancehead Jararaca Pintada Yarará Lancehead ▸ 66 Kibale National Park 🇺🇬 Uganda 4 African Bush Viper Rhinoceros Viper Forest Night Adder African Hairy Bush Viper ▸ 67 Serra dos Órgãos National Park 🇧🇷 Brazil 3 Yarará Lancehead Jararacussu Neotropical Rattlesnake ▸ 68 Tayrona National Natural Park 🇨🇴 Colombia 2 Lansberg's Hognose Viper Fer-de-lance ▸ 69 Plitvice Lakes National Park 🇭🇷 Croatia 1 Nose-horned Viper ▸ 70 Rincón de la Vieja National Park 🇨🇷 Costa Rica 3 Fer-de-lance Central American Rattlesnake Central American Jumping Pit Viper ▸ 71 Tambopata National Reserve 🇵🇪 Peru 4 Atlantic Forest Bushmaster Barba Amarilla Green Jararaca Brazil's Lancehead ▸ 72 Madidi National Park 🇧🇴 Bolivia 4 Barba Amarilla Atlantic Forest Bushmaster Neotropical Rattlesnake Green Jararaca ▸ 73 Nyungwe National Park 🇷🇼 Rwanda 2 Great Lakes Bush Viper Rhinoceros Viper ▸ 74 Darién National Park 🇵🇦 Panama 4 Fer-de-lance Rainforest Hog-nosed Viper Lansberg's Hognose Viper Chocoan Bushmaster ▸ 75 Henri Pittier National Park 🇻🇪 Venezuela 2 Barba Amarilla Neotropical Rattlesnake ▸ 76 Gandoca-Manzanillo Wildlife Refuge 🇨🇷 Costa Rica 3 Rainforest Hog-nosed Viper Fer-de-lance Central American Bushmaster ▸ 77 Bahía de Loreto National Park 🇲🇽 Mexico 4 Red Diamond Rattlesnake Speckled Rattlesnake Lower California Rattlesnake Santa Catalina Island Rattlesnake ▸ 78 Mercantour National Park 🇫🇷 France 2 Asp Viper Meadow Viper ▸ 79 Calakmul Biosphere Reserve 🇲🇽 Mexico 4 Yucatán Neotropical Rattlesnake Fer-de-lance Yucatecan Cantil Yucatán Hognose Viper ▸ 80 Snowdonia National Park 🇬🇧 United Kingdom 1 Adder ▸ 81 Reserva de la Biosfera Mariposa Monarca 🇲🇽 Mexico 4 Dusky Rattlesnake Western Black-tailed Rattlesnake Tlaloc's Rattlesnake Mexican Lancehead Rattlesnake ▸ 82 Picos de Europa National Park 🇪🇸 Spain 1 Seoane's Viper ▸ 83 Pyrénées National Park 🇫🇷 France 3 Asp Viper Seoane's Viper Lataste's Viper ▸ 84 Itatiaia National Park 🇧🇷 Brazil 3 Yarará Lancehead Neotropical Rattlesnake Fonseca's Lancehead ▸ 85 Taroko National Park 🇹🇼 Taiwan 4 Chinese Green Tree Viper Kikuchi Habu Taiwanese Habu Taiwan mountain pitviper ▸ 86 Kaeng Krachan National Park 🇹🇭 Thailand 3 White-lipped Pit Viper Chinese Mountain Pit Viper Wagler's Pit Viper ▸ 87 Addo Elephant National Park 🇿🇦 South Africa 4 Puff Adder Rhombic Night Adder Albany Adder Berg Adder ▸ 88 Hohe Tauern National Park 🇦🇹 Austria 1 Adder ▸ 89 Cairngorms National Park 🇬🇧 United Kingdom 1 Adder ▸ 90 Farallones de Cali National Natural Park 🇨🇴 Colombia 4 Fer-de-lance Highland Eyelash-Pitviper Chocoan Forest Pit Viper Chocoan Bushmaster ▸ 91 Zion National Park 🇺🇸 United States 2 Western Rattlesnake Sidewinder ▸ 92 Cabo Pulmo National Park 🇲🇽 Mexico 3 Red Diamond Rattlesnake Lower California Rattlesnake Speckled Rattlesnake ▸ 93 Ruaha National Park 🇹🇿 Tanzania 1 Puff Adder ▸ 94 Aigüestortes National Park 🇪🇸 Spain 1 Asp Viper ▸ 95 Sian Ka'an Biosphere Reserve 🇲🇽 Mexico 3 Fer-de-lance Yucatán Hognose Viper Yucatán Neotropical Rattlesnake ▸ 96 Yasuní National Park 🇪🇨 Ecuador 4 Barba Amarilla Green Jararaca Amazonian Toad-headed Pitviper Atlantic Forest Bushmaster ▸ 97 Aberdare National Park 🇰🇪 Kenya 1 Kenya Montane Viper ▸ 98 Cahuita National Park 🇨🇷 Costa Rica 3 Rainforest Hog-nosed Viper Fer-de-lance Central American Bushmaster ▸ 99 Sierra de la Macarena National Park 🇨🇴 Colombia 2 Barba Amarilla Speckled Forest Pit Viper ▸ 100 Tapantí-Macizo de la Muerte National Park 🇨🇷 Costa Rica 7 Fer-de-lance Side-striped palm pit viper Black-speckled Palm Pit Viper Rainforest Hog-nosed Viper Costa Rica Montane Pitviper Central American Bushmaster Blotched Palm-pitviper ▸ 101 Los Quetzales National Park 🇨🇷 Costa Rica 5 Talamancan Palm Pit Viper Costa Rica Montane Pitviper Fer-de-lance Side-striped palm pit viper Black-speckled Palm Pit Viper ▸ 102 Kerinci Seblat National Park 🇮🇩 Indonesia 3 Wagler's Pit Viper Sabah Bamboo Pitviper Ashy Pit Viper ▸ 103 Yosemite National Park 🇺🇸 United States 1 Western Rattlesnake ▸ 104 Bavarian Forest National Park 🇩🇪 Germany 1 Adder ▸ 105 Gobi Gurvansaikhan National Park 🇲🇳 Mongolia 2 Halys Pit Viper Alashan Pitviper ▸ 106 Kanha National Park 🇮🇳 India 2 Common Bamboo Viper Salazar's Pit Viper ▸ 107 Noel Kempff Mercado National Park 🇧🇴 Bolivia 1 Neotropical Rattlesnake ▸ 108 Soberanía National Park 🇵🇦 Panama 1 Fer-de-lance ▸ 109 Kgalagadi Transfrontier Park 🇿🇦 South Africa 2 Puff Adder Horned Adder ▸ 110 Bali Barat National Park 🇮🇩 Indonesia 1 White-lipped Island Pitviper ▸ 111 Chagres National Park 🇵🇦 Panama 2 Rainforest Hog-nosed Viper Fer-de-lance ▸ 112 Cuyabeno Wildlife Reserve 🇪🇨 Ecuador 4 Barba Amarilla Green Jararaca Amazonian Toad-headed Pitviper Atlantic Forest Bushmaster ▸ 113 Kidepo Valley National Park 🇺🇬 Uganda 1 Puff Adder ▸ 114 Bwindi Impenetrable National Park 🇺🇬 Uganda 2 Great Lakes Bush Viper Rhinoceros Viper ▸ 115 Palo Verde National Park 🇨🇷 Costa Rica 2 Slender Hognose Viper Central American Rattlesnake ▸ 116 Chapada dos Guimarães National Park 🇧🇷 Brazil 2 Brazilian Lancehead Neotropical Rattlesnake ▸ 117 Iberá National Park 🇦🇷 Argentina 1 Urutu Lancehead ▸ 118 Niokolo-Koba National Park 🇸🇳 Senegal 1 Puff Adder ▸ 119 Vanoise National Park 🇫🇷 France 1 Asp Viper ▸ 120 Cockscomb Basin Wildlife Sanctuary 🇧🇿 Belize 2 Fer-de-lance Central American Jumping Pit Viper ▸ 121 Taman Negara National Park 🇲🇾 Malaysia 2 Wagler's Pit Viper Sabah Bamboo Pitviper ▸ 122 El Palmar National Park 🇦🇷 Argentina 1 Urutu Lancehead ▸ 123 Carara National Park 🇨🇷 Costa Rica 1 Fer-de-lance ▸ 124 South Luangwa National Park 🇿🇲 Zambia 3 Snouted Night Adder Rhombic Night Adder Puff Adder ▸ 125 Table Mountain National Park 🇿🇦 South Africa 2 Puff Adder Berg Adder ▸ 126 Cévennes National Park 🇫🇷 France 2 Asp Viper Adder ▸ 127 Gorongosa National Park 🇲🇿 Mozambique 2 Snouted Night Adder Puff Adder ▸ 128 Waterberg Plateau Park 🇳🇦 Namibia 1 Puff Adder ▸ 129 Doi Inthanon National Park 🇹🇭 Thailand 3 Chinese Mountain Pit Viper Guo's Green Pit Viper Kramer's Pit Viper ▸ 130 Semuliki National Park 🇺🇬 Uganda 1 Gaboon Adder ▸ 131 Golden Gate Highlands National Park 🇿🇦 South Africa 2 Berg Adder Puff Adder ▸ 132 Kruger National Park 🇿🇦 South Africa 3 Puff Adder Snouted Night Adder Rhombic Night Adder ▸ 133 Tortuguero National Park 🇨🇷 Costa Rica 2 Fer-de-lance Rainforest Hog-nosed Viper ▸ 134 iSimangaliso Wetland Park 🇿🇦 South Africa 4 Puff Adder Gaboon Adder Snouted Night Adder Rhombic Night Adder ▸ 135 Marino Ballena National Park 🇨🇷 Costa Rica 1 Fer-de-lance ▸ 136 Kafue National Park 🇿🇲 Zambia 2 Puff Adder Rhombic Night Adder ▸ 137 Tijuca National Park 🇧🇷 Brazil 2 Yarará Lancehead Jararacussu ▸ 138 Poás Volcano National Park 🇨🇷 Costa Rica 1 Side-striped palm pit viper ▸ 139 San Lorenzo Protected Forest 🇵🇦 Panama 1 Fer-de-lance ▸ 140 Gonarezhou National Park 🇿🇼 Zimbabwe 1 Puff Adder ▸ 141 Nagarhole National Park 🇮🇳 India 2 Hump-nosed Viper Malabarian Pit Viper ▸ 142 Virunga National Park 🇨🇩 Democratic Republic of the Congo 4 Great Lakes Bush Viper Rhinoceros Viper Puff Adder African Hairy Bush Viper ▸ 143 Gauja National Park 🇱🇻 Latvia 1 Adder ▸ 144 Samburu National Reserve 🇰🇪 Kenya 2 Puff Adder Egyptian Saw-scaled Viper ▸ 145 Nikko National Park 🇯🇵 Japan 1 Short-tailed Mamushi ▸ 146 Ecrins National Park 🇫🇷 France 1 Asp Viper ▸ 147 Kinabatangan Wildlife Sanctuary 🇲🇾 Malaysia 2 North Philippine Temple Pitviper Borneo Pit Viper ▸ 148 Satpura National Park 🇮🇳 India 2 Russell's Viper Saw-scaled Viper ▸ 149 Amacayacu National Natural Park 🇨🇴 Colombia 1 Barba Amarilla ▸ 150 Tikal National Park 🇬🇹 Guatemala 1 Fer-de-lance ▸ 151 Cerro Azul Meámbar National Park 🇭🇳 Honduras 2 Central American Jumping Pit Viper Fer-de-lance ▸ 152 Selous Game Reserve 🇹🇿 Tanzania 1 Puff Adder ▸ 153 Murchison Falls National Park 🇺🇬 Uganda 2 Puff Adder Gaboon Adder ▸ 154 Way Kambas National Park 🇮🇩 Indonesia 1 Wagler's Pit Viper ▸ 155 Anavilhanas National Park 🇧🇷 Brazil 1 Barba Amarilla ▸ 156 Gir National Park 🇮🇳 India 1 Russell's Viper ▸ 157 Ordesa y Monte Perdido National Park 🇪🇸 Spain 1 Asp Viper ▸ 158 Bastimentos Island National Marine Park 🇵🇦 Panama 1 Fer-de-lance ▸ 159 Ría Lagartos Biosphere Reserve 🇲🇽 Mexico 1 Yucatán Neotropical Rattlesnake ▸ 160 Queen Elizabeth National Park 🇺🇬 Uganda 2 Puff Adder Great Lakes Bush Viper ▸ 161 Channel Islands National Park 🇺🇸 United States 1 Western Rattlesnake ▸ 162 Nairobi National Park 🇰🇪 Kenya 1 Puff Adder ▸ 163 Etosha National Park 🇳🇦 Namibia 2 Puff Adder Horned Adder ▸ 164 Tsavo East National Park 🇰🇪 Kenya 1 Puff Adder ▸ 165 Machalilla National Park 🇪🇨 Ecuador 2 Fer-de-lance Manabí Hognose Viper ▸ 166 Khangchendzonga National Park 🇮🇳 India 1 Chinese Mountain Pit Viper ▸ 167 Serengeti National Park 🇹🇿 Tanzania 2 Puff Adder Green Night Adder ▸ 168 Horton Plains National Park 🇱🇰 Sri Lanka 1 Gloyd's Hump-nosed Viper ▸ 169 Tsavo West National Park 🇰🇪 Kenya 1 Puff Adder ▸ 170 Mudumalai National Park 🇮🇳 India 1 Malabarian Pit Viper ▸ 171 Liwonde National Park 🇲🇼 Malawi 1 Puff Adder ▸ 172 Wilpattu National Park 🇱🇰 Sri Lanka 1 Hump-nosed Viper ▸ 173 Biebrza National Park 🇵🇱 Poland 1 Adder ▸ 174 Chingaza National Natural Park 🇨🇴 Colombia 1 Bothrocophias myrringae ▸ 175 Kiskunság National Park 🇭🇺 Hungary 1 Meadow Viper ▸ 176 Białowieża National Park 🇵🇱 Poland 1 Adder ▸ 177 Mikumi National Park 🇹🇿 Tanzania 1 Puff Adder ▸ 178 Wadden Sea National Park 🇩🇪 Germany 1 Adder ▸ 179 Masai Mara National Reserve 🇰🇪 Kenya 2 Puff Adder Green Night Adder ▸ 180 Volcanoes National Park 🇷🇼 Rwanda 1 Great Lakes Bush Viper ▸ 181 Pilanesberg National Park 🇿🇦 South Africa 1 Puff Adder ▸ 182 Moremi Game Reserve 🇧🇼 Botswana 1 Puff Adder ▸ 183 Los Nevados National Natural Park 🇨🇴 Colombia 1 Highland Eyelash-Pitviper ▸ 184 Akagera National Park 🇷🇼 Rwanda 1 Puff Adder ▸ 185 Hluhluwe-Imfolozi Park 🇿🇦 South Africa 2 Puff Adder Snouted Night Adder ▸ 186 Jiuzhaigou National Park 🇨🇳 China 1 Jiuzhai pitviper ▸ 187 Redwood National Park 🇺🇸 United States 1 Western Rattlesnake ▸ 188 Hwange National Park 🇿🇼 Zimbabwe 1 Puff Adder ▸ 189 Langtang National Park 🇳🇵 Nepal 1 Himalayan Pitviper ▸ 190 Coiba National Park 🇵🇦 Panama 1 Fer-de-lance ▸ 191 Cañón del Sumidero National Park 🇲🇽 Mexico 2 Tehuantepec Isthmus Neotropical Rattlesnake Central American Rattlesnake ▸ 192 Sierra de Guadarrama National Park 🇪🇸 Spain 1 Lataste's Viper ▸ 193 Ostional Wildlife Refuge 🇨🇷 Costa Rica 1 Central American Rattlesnake ▸ 194 Arusha National Park 🇹🇿 Tanzania 1 Puff Adder ▸ 195 Ngorongoro Conservation Area 🇹🇿 Tanzania 1 Puff Adder ▸ 196 Tarangire National Park 🇹🇿 Tanzania 1 Puff Adder ▸ 197 Lake Mburo National Park 🇺🇬 Uganda 1 Green Night Adder ▸ 198 Minneriya National Park 🇱🇰 Sri Lanka 1 Hump-nosed Viper ▸ 199 Las Baulas Marine National Park 🇨🇷 Costa Rica 1 Slender Hognose Viper ▸ 200 Lake Manyara National Park 🇹🇿 Tanzania 1 Puff Adder ▸ 201 Mkomazi National Park 🇹🇿 Tanzania 1 Green Night Adder ▸ 202 Ranthambore National Park 🇮🇳 India 1 Saw-scaled Viper ▸ 203 Chobe National Park 🇧🇼 Botswana 1 Puff Adder ▸ 204 Lake Nakuru National Park 🇰🇪 Kenya 1 Puff Adder ▸ 205 Lago de Yojoa 🇭🇳 Honduras 1 Fer-de-lance ▸ 206 Parque Estadual Encontro das Águas 🇧🇷 Brazil 1 Brazilian Lancehead ▸ 207 Monfragüe National Park 🇪🇸 Spain 1 Lataste's Viper ▸ 208 Chitwan National Park 🇳🇵 Nepal 1 Nepal Pitviper ▸ 209 Tangkoko Nature Reserve 🇮🇩 Indonesia 1 North Philippine Temple Pitviper ▸ 210 Yellowstone National Park 🇺🇸 United States 1 Prairie Rattlesnake ▸ 211 Yala National Park 🇱🇰 Sri Lanka 1 Russell's Viper ▸ 212 Sierra Nevada National Park 🇪🇸 Spain 1 Lataste's Viper ▸ 213 Amboseli National Park 🇰🇪 Kenya 1 Puff Adder ▸ 214 Doñana National Park 🇪🇸 Spain 1 Lataste's Viper ▸ 215 Parque Natural Metropolitano 🇵🇦 Panama 1 Fer-de-lance 
North Philippine Temple Pitviper
Ceylon Pit Viper
Prairie Rattlesnake
Sidewinder
Adder
Western Diamondback Rattlesnake
Nose-horned Viper
Timber Rattlesnake
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