アメリカ自然史博物館のインスタグラム(amnh) - 2月7日 23時00分

It’s game day and we’re preparing for #superbowl50 the best way we know how, by taking a look at the natural history behind the teams’ mascots, #Panthers and #Broncos. First up, panthers:
A black panther is a melanistic form of a jaguar (Panthera onca) or leopard (Panthera pardus). Both of these cat species are spotted and have a tawny base color with black spots (or rosettes in the case of the jaguar). The melanism is caused by a mutation that increases the amount of melanin in the coat and makes the tawny color very dark and masks the spots or rosettes. If you look closely, you can still see the spots on a “black panther.” When someone sees an all black large cat in Central or South America, it’s a melanistic jaguar.
The jaguar is the largest cat in the Americas. Its muscular, compact frame is built for strength and stealth rather than extended pursuit. A jaguar’s jaws can crush the skulls of small mammals and can even pierce turtle shells. For larger prey, it pounces, bringing down the victim by wrenching the head with a swipe of its wide paw.
This fossil is a Museum specimen of Panthera onca augusta, an extinct jaguar that lived during the Late Pleistocene epoch, approximately 500-12 thousand years ago. This fossil was collected in Florida.
AMNH/D.Finnin

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