Youtor
Youd never guess which species orcas evolved from
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=otS83teXcUg
They are among the most formidable animals in the ocean — pack-hunting creatures that feed on everything from salmon to blue whales. Orcas, like all whales, are mammals — they breathe air and feed their young with milk, but their ancestors are not who you’d expect. #TheNatureOfThings #ListeningtoOrcas • • • • • • • • • • • • • • • • • The very first “whales” were land animals that walked on four legs — small deer-like creatures, about the size of a house cat, that ate plants and waded around in prehistoric lagoons over 50 million years ago. • But in the span of just 10 million years, those land-living vegetarians lost their hind legs, grew flippers and fins, to become the streamlined giants of the seas. • The closest-living relatives of orcas are hippos, but a modern example of what their ancestor may have been like is the chevrotain, a small deer species that dives into water when threatened, hiding from predators below the surface. • John Ford, a zoologist and renowned expert in orca acoustics, describes how orcas adapted to the ocean habitat. Watch the video above for the full story. • • More Shows: • http://bit.ly/CBCDocs-WatchMore • • Stay Connected: • Twitter: http://bit.ly/CBCDocs-Twitter • Facebook: http://bit.ly/CBCDocs-Facebook • Instagram: http://bit.ly/CBCDocs-Instagram
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