Bernard Castelein / Southern plains grey langur ( Semnopithecus entellus / Presbytis entellus) close up face profile, Sawai Modhopur, Rajasthan, India

Mike Read / Magellanic penguin (Spheniscus magellanicus) calling, Falkland Islands

Konrad Wothe / Cairns birdwing butterfly (Ornithoptera priamus) male on fern leaf and Blue Mountain Swallowtail butterfly in flight, Atherton Tablelands, Queensland, Australia, October

Martin Camm / Carwardine / Illustration of Killer Whale / Orca / Sea Wolf / Blackfish (Orcinus orca) male, Delphinidae; the largest member of the dolphin family. There are up to five distinct killer whale types, some populatio...

Edwin Giesbers / Head portrait of Sumatran tiger (Panthera tigris sumatrae) captive

Espen Bergersen / Killer whale / orca (Orcinus orca) spyhopping. Andfjorden, close to Andoya, Nordland, Northern Norway, January.