Tropical Bats Take it Slow

Finding enough food to sustain the energy costs of foraging is a problem faced by all mammals. However, it is made more difficult for mammals that feed on unpredictable and limited prey. Such is the case in certain neotropical bats. Molossus molossus (Figure 1), for example, Read More...

Continuous Tooth Replacement in a Mole-rat

Mammals are characterized by diphyodonty, only two generations of teeth, among other traits. However, a few mammals have evolved a form of continuous tooth replacement. For example, Manatees (Trichechus) add extra teeth Read More...

Caller ID in Koala Calls

The phone rings, you answer, the caller says “hello, and” you instantly recognize the caller’s voice. This ability to recognize other individuals by their voice is also relatively common in baboons and other non-human primates. Until recently, Read More...

Hyperfast Echolocation Muscles in Bats

With vision, animals receive a more-or-less continuous stream of information about the world. With echolocation, however, bats only get a snapshot of their environment with each call and echo, requiring them to make rapid successions of calls. By bouncing sound waves off objects, including the bugs that are their main diet, bats can produce an accurate representation of their environment Read More...