Day: April 17, 2017
Are The Waxwings Crests Really That Useful?
The waxwing’s crest is used principally for courtship, raised almost to the vertical as part of a wider display directed …
How And Which Male Orangutans Develop Cheekpads
No. Only the most dominant male orangutans bear large fleshy cheekpads, or flanges – most look similar to females. Flanged …