A black bear walks across a trackway and left footprint of a juvenile black bear. (IMAGE)
Caption
On left: Ellison McNutt collects data from a juvenile female black bear (Ursus americanus), who walks bipedally, unassisted through the mud trackway at Kilham Bear Center in Lyme, New Hampshire. On right: Left footprint from one of the juvenile male black bears.
Credit
Image on left by Jeremy DeSilva. Image on right by Ellison McNutt.
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License
Original content