Lewis Jefferies / Blackfinned anemonefish (Amphiprion nigripes) family seeks shelter in safety of Anemone's stinging tentacles, South Ari Atoll, Maldives, Indian Ocean.
David Pattyn / Great crested grebe (Podiceps cristatus) with young chicks on the back among Fringed water lilies (Nymphoides peltata) Lake Kerkini, Greece, July.
Nick Upton / White stork (Ciconia ciconia) with three chicks in nest at top of an Oak tree, gaping in hot sunshine with one exercising its wings, Knepp Estate, Sussex, UK, June.
Ross Hoddinott / Oak tree (Quercus robur) growing among bracken (Pteridium aquilinum), autumn colour, The New Forest, Hampshire, UK. November 2016
John Cancalosi / Gila Woodpecker (Melanerpes uropygialis) bringing food to nest in Saguaro cactus (Carnegiea gigantea) before leaving, Sonoran Desert, Arizona, USA.
John Chan / Monarch Butterfly (Danaus plexippus) nectaring on a Sweet scabious (Scabiosa atropurpurea), Orange County, California, USA, May.
Carlos Zorrilla / Male Orchid bee (Euglossini sp.) on an orchid (Lycomormium ecuadorense) flower trying to remove pollinia attached to its back, Ecuador, April.
Nick Upton / Common carder bumblebee (Bombus pascuorum) nectaring on a Dandelion (Taraxacum officinale) flowerhead among many Common daisies (Bellis perennis) on a lawn left unmown to allow wild flowers to bloom t...
John Chan / Monarch butterfly (Danaus plexippus) taking flight from a Pride of madeira (Echium candicans) after contact with a Honey bee (Apis mellifera), Southern California, USA, April.
Tony Wu / Female Northern pygmy squid (Idiosepius paradoxus) depositing eggs on a blade of eelgrass (Zostera marina), Yamaguchi Prefecture, Japan.
Tony Wu / Female Northern pygmy squid (Idiosepius paradoxus) preparing to lay another egg on a blade of eelgrass (Zostera marina), Yamaguchi Prefecture, Japan.
Rose Summers / Eurasian beaver (Castor fiber) swimming over to a willow, it clambers on to a branch before beginning to feed on the surrounding leaves, Devon, England, UK.
Solvin Zankl / Female Acorn weevil (Curculio glandium) boring into oak tree acorn to lay eggs, Lower Saxonian Elbe Valley Reserve, Germany, September.
John Chan / Group of Brent geese (Branta bernicla) foraging in Eelgrass (Zostera marina) bed, Bolsa Chica Ecological Reserve, Southern California, USA, March.
Brian Bevan / Melanistic grey squirrel (Sciurus carolinensis) searching for, finding and eating chestnuts amongst autumn leaves, Bedfordshire, UK, October.
Brian Bevan / Grass snake (Natrix natrix) at pond edge sensing with tongue, Bedfordshire, UK, September.
Brian Bevan / Grass snake (Natrix natrix) sensing with tongue while swimming through duckweed in pond, Bedfordshire, UK, September.
Shane Gross / Red mangrove (Rhizophora mangle) propagules / plantlets which become fully mature plants before dropping off the parent tree to drift away and establish a new tree. Bahamas.
Ross Hoddinott / Small pearl-bordered fritillary butterfly (Boloria selene) roosting on Hard fern (Blechnum spicant) fiddlehead. Marsland Valley Wildlife Trusts Reserve, Cornwall, England, UK. June.
Jack Dykinga / Horseshoe Bend of the Salt River with Saguaro cacti (Carnegiea gigantea), Arizona, USA.
Jack Dykinga / Saguaro cacti (Carnegiea gigantea) Cabeza Prieta National Wildlife Refuge, Arizona, USA.
Jack Dykinga / Elves Chasm with maidenhair ferns and monkey flowers. Grand Canyon National Park, Arizona, USA.
Jack Dykinga / New snow on Pinyon pines ( Pinus edulis) in morning light. Grand Canyon National Park, Arizona, USA
Shane Gross / Lemon shark juvenile (Negaprion brevirostris) swimming in mangrove habitat near blue crab (Callinectes sapidus), a prey species for the shark. Eleuthera, Bahamas.
Shane Gross / Lemon shark juvenile (Negaprion brevirostris) trying to feed on the leaves of a red mangrove (Rhizophora mangle). As pups, the sharks have to learn to hunt for themselves and sometimes make mistakes....
Jeff Foott / Mexican giant cardon cactus (Pachycereus pringlei) and Boojum tree (Fouquieria columnaris) in Sonoran Desert, rainbow in background. Catavina, Valle de los Cirios Reserve, Baja California, Mexico.
Paul Harcourt Davies / Species rich alpine meadow with Orange lily (Lilium bulbiferum), Meadow clary (Salvia pratensis) and Yellow rattle (Rhinathus sp). View towards Campitello di Fassa and mountains, Fassa Valley, Dolomit...
Shane Gross / Green turtle (Chelonia mydas) feeding on Turtlegrass (Thalassia testudinum) seagrass bed. The Bahamas.
Jack Dykinga / Joshua Trees (Yucca brevifolia) of the Mojave Desert at dawn encircled with flowering lupines. (Lupinus sp,) Mohave County, Castaneda Wash, Arizona, USA.
Jack Dykinga / Ancient Bristlecone Pine Forest with twisted limbs of Bristlecone pine (Pinus longaeva) at dawn on the White Mountains, Inyo National Forest, California, USA.
Edwin Giesbers / RF - White-legged damselfly (Platycnemis pennipes) peering over Oxeye daisy (Leucanthemum vulgare) flower. The Netherlands. August. (This image may be licensed either as rights managed or royalty free...
Edwin Giesbers / Orange tip butterfly (Anthocharis cardamines), two females on Cuckooflower (Cardamine pratensis) in marshy grassland, egg visible on stem. April 2009.
Edwin Giesbers / Orange tip butterfly (Anthocharis cardamines) two females on Cuckooflower (Cardamine pratensis). The Netherlands. March.
Edwin Giesbers / RF - Green-veined white butterfly (Pieris napi) on Cuckooflower (Cardamine pratensis), in meadow amongst Buttercup (Ranunculus sp) flowers. The Netherlands. March. (This image may be licensed either a...
Juergen Freund / Firefly (Lampyridae) trails on beach at night, Palm tree silhouetted against milky way. Oak Beach, Port Douglas, Far North Queensland, Australia. 2016.
Philippe Clement / Tracking shot through Beech (Fagus sylvatica) forest, with the sun shining through the foliage, dolly shot, Belgium, April.
Philippe Clement / Wood anemones (Anemone nemorosa) in flower in forest, dolly shot, Belgium, April.
Simon Littlejohn / Honey bee (Apis) nectaring from a flowering Eucalyptus tree, Andalusia, Spain, June.
Simon Littlejohn / Family of European otters (Lutra lutra) feeding and playing amongst Whitewater crowfoot (Ranunculus aquatilis) flowers, River Stour, Dorset, England, UK, June.