Spider Monkey Society is Sexually Segregated
Ew, boys! A species of spider monkey has been found to live in strictly sexually segregated societies, apparently because the males attack the females if they spend too much time…
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Elephants Have Learned to 'Understand Human'
Whether we realize it, African elephants (Loxodonta africana) are listening to us. The pachyderms can tell certain human languages apart and even determine our gender, relative age, and whether we’re…
Bisphenol A (BPA) at Very Low Levels Can Adversely Affect Developing Organs in Primates
Bisphenol A (BPA) is a chemical that is used in a wide variety of consumer products, such as resins used to line metal food and beverage containers, thermal paper store…
Brain Scans Show Striking Similarities Between Dogs and Humans
A new brain-imaging study of mankind’s best friend has found a striking similarity in how humans and dogs — and perhaps many other mammals — process voice and emotion. Like…
Baby Steps Toward Healing Hearing
There is no biological cure for deafness—yet. We detect sound using sensory cells sporting microscopic hairlike projections, and when these so-called hair cells deep inside the inner ear are destroyed…
How Evolution Shapes the Geometries of Life
Why does a mouse’s heart beat about the same number of times in its lifetime as an elephant’s, although the mouse lives about a year, while an elephant sees 70…