Marie Read / Eared grebes (Podiceps nigricollis), pair, one adult carrying food (damselfly) for two chicks riding on the other adult's back, Bowdoin National Wildlife Refuge, Montana, USA

Marie Read / Eared grebes (Podiceps nigricollis), pair, one adult feeding chick riding on the other adult's back, Bowdoin National Wildlife Refuge, Montana, USA

Anup Shah / Silvered Leaf Monkey (Trachypithecus cristatus) female holding week old baby after it was handled roughly by another female, Bako National Park, Sarawak, Borneo, Malaysia

Eric Baccega / Male Ostrich (Struthio camelus) protecting chicks from the sun with its wings, Samburu National Reserve, Kenya, Africa.

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fanle' aged 13 years and protecting her infant son 'Flanle' aged 3 years from an aggressive male, Bossou Forest, Mont Nimba, Guinea. January 2011.

Kim Taylor / Wood Ant (Formica rufa) worker protecting the nest by jetting formic acid from its tail. Endemic to Europe and Asia. Surrey, UK.

Yukihiro Fukuda / Male Japanese giant salamander (Andrias japonicus) protecting his eggs inside his nest, Japan, October

Yukihiro Fukuda / Male Japanese giant salamander (Andrias japonicus) protecting his eggs inside his nest, Japan, September

Andrew Parkinson / Redwing (Turdus iliacus) protecting a windfall apple from another bird. Derbyshire, UK, February. (Non-ex)

Ross Hoddinott / 2020VISION / Wood ants (Formica rufa), Arne RSPB reserve, Dorset, England, UK, September. 2020VISION Book Plate. Did you know? Wood ants are ecologically important, protecting trees from parasites and recycling nu...

Piotr Naskrecki / Cross Frog (Oreophryne sp) male protecting his clutch of eggs, Papua New Guinea

Piotr Naskrecki / Ground Frog (Platymantis boulengeri) female protecting her clutch of eggs, Papua New Guinea