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wild · farmed · deadly

Who shares the planet

The wildlife people record most in every country, the farm animals that outnumber it, and the animals that are deadliest to us. Tap any country for its dominance charts.

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All the world's mammals, by weight

Wild mammals are a sliver of the total. For every kilogram of wild land mammal there are about 50 kilograms of people and livestock.

Livestock 630 MtHumans 390 MtWild marine mammals 40 MtWild land mammals 20 Mt

Mt = million tonnes. Greenspoon et al., PNAS, 2023.

The deadliest animals to humans

Estimated deaths per year, worldwide.

Mosquitoes760,000
Snakes100,000
Dogs40,000
Freshwater snails14,000
Kissing bugs8,000
Sandflies5,000
Roundworms4,000
Scorpions3,000
Tapeworms2,000
Tsetse flies1,500

Our World in Data compilation of WHO, IHME and other estimates. Mosquitoes include malaria (597,000 deaths in 2023, WHO), dengue and other diseases.

Coming next: the ocean

The same dominance charts for the world's seas, region by region, and wild-versus-farmed fish.

How this page works

Most recorded wildlife comes from GBIF, the Global Biodiversity Information Facility: wild observations only (no zoo or museum records), counted by species. It shows what people and camera traps record most, which depends on where they look; a single research project can put a small species on top. Species recorded counts species with at least five wild records. Fish are the major ray-finned fish orders plus sharks and rays; reptiles combine lizards and snakes, turtles, and crocodilians.

Farm animals are FAO livestock counts (latest year); "most numerous" and "per person" exclude poultry, which would otherwise top almost every country. Malaria deaths are WHO estimates.

Sources: GBIF.org occurrence data (CC BY 4.0 and CC0); FAOSTAT (CC BY 4.0); WHO Global Health Observatory; World Bank population; Greenspoon et al. 2023, PNAS; Our World in Data.