Brian Resnick Retweeted Dr Alex Evans
Brian Resnick added,
Dr Alex Evans @alexevans91
It may look like birds have backwards-facing knees, but in reality, their knees are close to the chest and often concealed by feathers. This makes it look like their legs bend backwards at the "knee" but this joint is more closely comparable to a human ankle! #birds #ornithology pic.twitter.com/dq0qDcGt3s
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