Black Rhinoceros
Black rhinos fell by about 98 percent between 1960 and 1995, to around 2,400 animals, and have since more than doubled thanks to intensive protection.
Mammal
Black-tailed Prairie Dog
Prairie dog alarm calls are so detailed that they appear to describe a predator’s type, size and even colour.
Blackbuck
Blackbuck have long been protected by the Bishnoi community of Rajasthan, whose faith forbids harming animals and trees.
Blue Wildebeest
In the southern Serengeti, around half a million wildebeest calves are born within a few weeks each February, overwhelming predators with sheer numbers.
Bobcat
The bobcat is the most common wild cat in North America, with an estimated population of well over two million.
Bonobo
Bonobo societies are led by females, and conflicts are often defused with social bonding, grooming and sex rather than violence.
Bornean Orangutan
Orangutan mothers raise each infant for about seven to eight years, one of the longest childhoods of any animal apart from humans.
Bottlenose Dolphin
Each bottlenose dolphin develops its own signature whistle, which works like a name, and dolphins respond when they hear their own.
Bowhead Whale
Bowhead whales can live for more than 200 years, making them the longest-lived mammals known.