'Most mammals have 7 of these neck bones; 3-toed sloths have 8 or 9 & can rotate their heads 270 degrees'
(cervical) vertebrae
SLOTH: Most mammals have 7 of these neck bones; 3-toed sloths have 8 or 9 & can rotate their heads 270 degrees
Most mammals have 7 of these neck bones; 3-toed sloths have 8 or 9 & can rotate their heads 270 degrees
Most mammals have 7 of these neck bones; 3-toed sloths have 8 or 9 & can rotate their heads 270 degrees
SLOTH
cervical vertebrae
SLOTH