Graeme Guy/ BIA / Eastern Osprey (Pandion cristatus) parent feeding chick in nest, Western Australia, Australia

Anup Shah / Eastern Chimpanzee (Pan troglodytes schweinfurthii) fifteen year old mother carrying her twenty-one month old daughter, Gombe National Park, Tanzania

Paul Bertner / Giant Crab Spider (Sparassidae) mother with spiderlings, Udzungwa Mountains National Park, Tanzania

Konrad Wothe / Common Merganser (Mergus merganser) mother with chicks, Upper Bavaria, Germany

Alain Ghignone/ BIA / Red-backed Shrike (Lanius collurio) mother feeding fledgling, Aosta Valley, Italy

Alain Ghignone/ BIA / Great Crested Grebe (Podiceps cristatus) parent carrying chicks, Piedmont, Italy

Alain Ghignone/ BIA / Great Crested Grebe (Podiceps cristatus) pair feeding chick, Piedmont, Italy

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and three month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and three month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Pygmy Three-toed Sloth (Bradypus pygmaeus) mother and four month old young, Isla Escudo de Veraguas, Panama

Suzi Eszterhas / Sea Otter (Enhydra lutris) mother with three day old newborn pup, Monterey Bay, California

Suzi Eszterhas / Sea Otter (Enhydra lutris) mother and three day old newborn pup, Monterey Bay, California