If you own more than one cat, you may already be aware that domestic cats have a very developed sense of pecking-order.
Now, every cat scats, but if you have more than one indoor cat and you're interested in finding out which cat is the alpha, you can watch the scat.
Cats send all sorts of nonverbal signals, both to each other and to us humans. One of those signals is a blink. Learn more on this Moment of Science.
Brown-headed cowbirds are robin-sized black birds whose range covers most of North America. From a people’s point of view cowbirds are what we might call deadbeat parents. Cowbirds lay their eggs in the nests of other bird species, and the cowbird nestlings are raised by the foster parents. Since the cowbirds spend their formative months with birds of an entirely different species which has separate habits, songs, etc., how does a cowbird know it’s a cowbird? Learn more on this Moment of Science.