Hair Sensors Assist Bat Flight

Bat wing membranes are not sheets of naked skin. Instead, they are covered with tiny hairs. In some species, such as Tadarida condylura (Molossidae), the hairs aid in streamlining the airfoil (Figure 1), thereby reducing drag. In others the wing Read More...

Dramatic Declines in Myotis Summer Activity

Bat biologists have known for some time that White-nose syndrome (WNS) is causing rapid declines in little brown bats in the Eastern United States. In 2006 biologist discovered a white fungus on the nose, wings, and ears of cave hibernating Read More...

Brown Bears Use Anal Sac Secretions to Sniff Out Mates

Brown bears (Ursus arctos) sense their world largely through their nose (Figure 1). They have an extremely well developed sense of smell; under ideal conditions, they can detect odors from Read More...

Who’s Your Daddy – Paternity in Ground Squirrels

Reproductive strategies are shaped by sexual selection, but selection pressures often differ between the sexes. When both sexes mate with multiple partners during the breeding season (polyandry or polygynandry) a conflict arises between the sexes. Females can be
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