Alan Murphy/ BIA / Northern Caracara (Caracara cheriway) chasing sub-adult with prey, Texas

Scott Leslie / Limpkin (Aramus guarauna) amid curtain of Spanish Moss (Tillandsia usneoides), Florida

Richard Du Toit / Burchell's Zebra (Equus burchellii) reacting to parasitic Bot Fly (Oestridae) trying to lay eggs on it, KwaZulu-Natal, South Africa

Piotr Naskrecki / Yellow Fever Mosquito (Aedes aegypti) female feeding on human blood, Gorongosa National Park, Mozambique

D. Parer & E. Parer-Cook / Galapagos Land Iguana (Conolophus subcristatus) with a Small Ground-Finch (Geospiza fuliginosa) on its head removing parasites, Galapagos Islands, Ecuador

David Tipling / 2020VISION / Cuckoo (Cuculus canorus) 12 day chick in Reed Warbler nest (Acrocephalus scirpaceus) fed by Reed warbler, Fenland, Norfolk, UK, May

David Tipling / 2020VISION / Reed Warbler (Acrocephalus scirpaceus) at nest feeding 12 day Cuckoo chick (Cuculus canorus), Fenland, Norfolk, UK, May

David Tipling / 2020VISION / Reed warbler (Acrocephalus scirpaceus) feeding 12 day chick of European cuckoo (Cuculus canorus) in its nest, East Anglian Fens, Norfolk, May. 2020VISION Book Plate.

David Tipling / 2020VISION / 12 day chick of European cuckoo (Cuculus canorus) in Reed warbler's (Acrocephalus scirpaceus) nest, East Anglian Fens, Norfolk, May

Daniel Heuclin / Mosquito (Anopheles gambiae) feeding on human in controlled conditions. The body is becoming engorged with blood. Malaria vector. Africa, June. Engorging sequence 2 of 3. Model released

Stephen Dalton / Hedgesparrow / Dunnock (Prunella modularis)feeding European cuckoo (Cuculus canorus) in oak tree, UK

Ingo Arndt / Rafflesia (Rafflesia arnoldii) flower, is the largest flower in the world, fresh open first day, highlands, Malaysian Peninsula