Bence Mate / Two Long eared owl chicks (Asio otus) perching on tree branch in daylight, Pusztaszer, Kiskunsagi National Park, Hungary

Mark Taylor / Two ginger kittens rolling playfully on their sides.

Jane Burton / Portrait of Tabby kitten inspecting a tortoise.

Jane Burton / Silver tabby kitten inspecting a tortoise.

Claudio Contreras / Northern elephant seal (Mirounga angustirostris) close-up of weaner / juvenile sleeping, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, April

Jane Burton / British Shorthair brown tabby female kitten looking inquisitively at young agouti 'windmill ears' rabbit

Bryan and Cherry Alexander / Emperor penguins (Aptenodytes forsteri), probably non breeders, investigating a dead chick. Snow Hill Island, Antarctica, October.

Mark Taylor / Tortoiseshell kitten with baby tortoiseshell Guinea pig.

Mark Taylor / Ginger-and-white kitten and sandy Netherland dwarf-cross rabbit.

Mark Taylor / Ginger kitten with paw over head of sandy Lionhead-cross rabbit.

Mark Taylor / Ginger kitten, 7 weeks, playing with ear of young Lionhead-Lop rabbits.

Mark Taylor / Lionhead-cross rabbit pushing two young guinea pigs in a wicker toy sledge.