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2:36
The white-tipped sicklebill is one of Costa Rica's most elusive hummingbirds.
2:37
Elmo and friends learn how orphaned baby elephants are cared for at the Sheldrick Wildlife Trust.
3:20
Elmo and friends discover just how noisy the African savanna can be after dark.
2:29
Elmo and friends learn how lion prides work on the African savanna.
2:55
Tigers are known to be solitary animals, but these two mothers appear to be breaking the rules.
3:01
When her cub wanders close to a village, a mother tiger must find a way to bring it safely back.
2:24
These clumsy tiger cubs put their hunting skills to the test, with some surprising results.
3:08
No one has ever tried to follow tigers at night like this before.
2:32
Tigers are known to be solitary animals, with males rarely observed interacting with cubs.
2:42
Up to now, scientists had thought that song was an honest signal from the male.
2:34
In 1960, David Attenborough captured the first-ever audio of Madagascar’s largest lemur.
2:33
It was once thought that only male songbirds were capable of song.
