#src documentary

A large, crow-sized falcon, it has a blue-grey back, barred white underparts and a black head. As is typical for bird-eating raptors, peregrine falcons are sexually dimorphic, with females being considerably larger than males. Although its diet consists almost exclusively of medium-sized birds, the peregrine will sometimes hunt small mammals, small reptiles, or even insects.

It's thought the reason they sleep upright is to make it easy to bob up for air.

The tide goes out twice a day, changing the conditions of the reef dramatically. As the water departs, so do the big sharks as it's now too shallow for them to survive in. The small epaulette takes advantage of this brief moment in the reef's life cycle. No longer at risk of being someone else's dinner, it can focus on finding its own.

Emperor Penguins 🐧 Earth Odyssey S7E14 "Birds of a Feather"

Cassowaries are flightless birds of the genus Casuarius, in the order Casuariiformes. They are classified as ratites, flightless birds without a keel on their sternum bones. They can run up to 50 km/h through dense forest and can jump up to 1.5 m. 

This baby sperm whale plays with a mangrove seed practicing his coordination. He produces pulses of high frequency sound from his large head; sonar that will eventually enable him to locate prey in the black depths. Zeroing in on a tiny seed is great practice. When you're as big as this, grabbing something the size of a pencil is not easy.

These islands are home to wild horses. They live a perilous life, braving tides and strong currents. Legend has it their ancestors were marooned here when the ships of conquistadors were wrecked on these shores.

Fox Cubs 🦊 A Year on Planet Earth: Spring