John Cancalosi / Captive corn snake (Pantherophis guttatus) eating an Eastern chipmunk (Eutamias sp.). The chipmunk was found dead and fed to the captive snake. North America.

Simon Littlejohn / Two European otters (Lutra lutra) hunting in the River Stour, Dorset, England, UK, May.

Simon Littlejohn / Close-up of a female Patagonian puma (Puma concolor patagonica) feeding on a Guanaco (Lama guanicoe) carcass, filmed with a remote camera, Torres del Paine National Park, Patagonia, Chile, May.

Simon Littlejohn / Mute swans (Cygnus olor) hissing and lunging at a European otter (Lutra lutra), River Stour, Dorset, England, UK, June.

Simon Littlejohn / Family of European otters (Lutra lutra) feeding and playing amongst Whitewater crowfoot (Ranunculus aquatilis) flowers, River Stour, Dorset, England, UK, June.

Simon Littlejohn / Close-up of a female European otter (Lutra lutra) and two juveniles feeding in a river, River Stour, Dorset, England, UK, June.

Simon Littlejohn / Female European otter (Lutra lutra) and two large pups playing and feeding in mid river, River Stour, Dorset, England, UK, June.

Brian Bevan / Male European cuckoo (Cuculus canorus) trying to mate with a decoy female, used as part of a scientific study, Bedfordshire, England, UK, May.

Brian Bevan / Male European cuckoo (Cuculus canorus) calling to another male from branch, flies off, Bedfordshire, England, UK, May.

Brian Bevan / Male European cuckoo (Cuculus canorus) trying to mate with a decoy female, used as part of a scientific study, Bedfordshire, England, UK, May.

Brian Bevan / Male European cuckoo (Cuculus canorus) calling to another male, before flying off in response to a female, Bedfordshire, England, UK, May.

Morley Read / Mist blowing through cloudforest, Mindo, Ecuador, 2019.

Konrad Wothe / Macgregor's bowerbird (Amblyornis macgregoriae) singing in rainforest, Papua New Guinea.

Konrad Wothe / Macgregor's bowerbird (Amblyornis macgregoriae) decorating his bower in a rainforest, Papua New Guinea.

Konrad Wothe / Static shot of rain falling in a rainforest, Papua New Guinea.

Konrad Wothe / Macgregor's bowerbird (Amblyornis macgregoriae) at his bower in a rainforest, Papua New Guinea.

Konrad Wothe / Male Lawes' parotia bird of paradise (Parotia lawesii) displaying in a rainforest, Papua New Guinea.

Konrad Wothe / Male Lawes' parotia bird of paradise (Parotia lawesii) displaying in a rainforest, Papua New Guinea.

Konrad Wothe / Male Lawes' parotia bird of paradise (Parotia lawesii) cleaning its display ground in a rainforest, Papua New Guinea.

Konrad Wothe / Two male Lawes' parotia birds of paradise (Parotia lawesii) hopping on its display ground, with females watching nearby, Papua New Guinea.

Mark Carwardine / Aerial shot zooming in on a superpod of Short-beaked common dolphins (Delphinus delphis), Sea of Cortez, Baja California, Mexico.

Matthew Maran / Red fox vixen (Vulpes vulpes) with two suckling cubs in an allotment, London, England, UK, May.

Matthew Maran / Red fox vixen (Vulpes vulpes) grooming a suckling cub in an allotment, London, England, UK, May.

Matthew Maran / Red fox vixen (Vulpes vulpes) with four suckling cubs in an allotment, one jumping over her back, London, England, UK, May.

Matthew Maran / Red fox vixen (Vulpes vulpes) with four suckling cubs in an allotment, cubs start to play, London, England, UK, May.

Matthew Maran / Close up of a Red fox vixen (Vulpes vulpes) grooming her five cubs at den entrance in an allotment, cubs begin to suckle, London, England, UK, April.

Matthew Maran / Red fox cubs (Vulpes vulpes) play fighting in an allotment, London, England, UK, June.

Matthew Maran / Red fox (Vulpes vulpes) family in an allotment, with rival male fox in background, London, England, UK, June.

Matthew Maran / Male Red fox (Vulpes vulpes) interacting with cub in allotment, London, England, UK, June.

Matthew Maran / Red fox vixen (Vulpes vulpes) grooming and playing with her cubs in an allotment, London, England, UK, June.

Matthew Maran / Red fox vixen (Vulpes vulpes) feeding her cubs at entrance to den in an allotment, London, England, UK, April.

Matthew Maran / Red fox vixen (Vulpes vulpes) feeding her cubs at entrance to den in an allotment, London, England, UK, April.

Michael Hutchinson / Female Goldenrod spider (Misumena vatia) on Annual honesty (Lunaria annua) flower, trying to catch a hoverfly, Bristol, England, UK, April.

Michael Hutchinson / Wide angle shot of a female Goldenrod spider (Misumena vatia) on Annual honesty (Lunaria annua) flower, with flies flying nearby, Bristol, England, UK, April.

Michael Hutchinson / Close-up of a female Goldenrod spider (Misumena vatia) on Annual honesty (Lunaria annua) flower, feeding on hoverfly prey, Bristol, England, UK, April.

Michael Hutchinson / Close-up of a female Goldenrod spider (Misumena vatia) catching a hoverfly, on Annual honesty (Lunaria annua), Bristol, England, UK, April.

Derek Galon / Timelapse of a Monarch butterfly (Danaus plexippus) caterpillar feeding on Mexican butterfly weed (Asclepias curassavica), Dominica, Lesser Antilles.

Derek Galon / Aerial tracking shot ascending over damaged trees, eight months after hurricane Maria, Dominica, Lesser Antilles, 2018.

Derek Galon / Aerial tracking shot showing aftermath of landslides, two months after hurricane Maria, Dominica, Lesser Antilles, 2018.

Derek Galon / Timelapse of Walking iris (Neomarica caerulea) flowers opening. Controlled conditions, native to Brazil.

Derek Galon / Timelapse of a Passionflower (Passiflora edulis) opening, Dominica, West Indies. Controlled conditions.

Richard Sidey / Drone shot of four Humpback whales (Megaptera novaeangliae) bubble-net feeding, cooperatively hunting Krill (Euphausiidae), Antarctic peninsula.

Richard Sidey / Drone shot of five Humpback whales (Megaptera novaeangliae) bubble-net feeding, cooperatively hunting Krill (Euphausiidae), Antarctic peninsula.

Richard Sidey / Drone shot of four Humpback whales (Megaptera novaeangliae) bubble-net feeding, cooperatively hunting Krill (Euphausiidae), Antarctic peninsula.

Richard Sidey / Drone shot of two Humpback whales (Megaptera novaeangliae) bubble-net feeding, cooperatively hunting Krill (Euphausiidae), Antarctic peninsula.

Dave Bevan / Atlantic puffin (Fratercula arctica) returning to nest site, falls over, Yorkshire, England, UK, May.

Dave Bevan / Pair of Grey wagtails (Motacilla cinerea) feeding nestlings and removing faecal sacs before flying out of frame, Carmarthenshire, Wales, UK, June.

Dave Bevan / Eurasian beaver (Castor fiber) scratching before jumping into the water, alarmed, Ceredigion, Wales, UK, July.