Bolivian river dolphins observed playing with an anaconda

A trio of scientists, one with Universidade Federal do Rio Grande do Sul, another from Museo Historia Natural Noel Kempff Mercado and a third independent researcher, report evidence of several Bolivian river dolphins playing ...

California mice eat monarch butterflies

Monarch butterflies possess a potent chemical armor. As caterpillars, they eat plants filled with toxic cardenolides that build up in their bodies and make them unpalatable to most—but not all—predators. In central Mexico, ...

Study finds fish rubbing up against their predators—sharks

While rubbing up against a shark sounds like a risky move if you're a fish, a collaborative research team led by the University of Miami (UM) Shark Research and Conservation Program at the Rosenstiel School of Marine and ...

Possible evidence of paternal care in bigfin reef squid

A trio of researchers, two from Universidade de Lisboa, the other from the American Museum of Natural History, has found possible evidence of paternal care in a cephalopod. In their paper published in the journal Ecology, ...

Wing shape determines how far birds disperse

Bird dispersal movements are thought to depend on complex demographic and genetic factors. Dr. Santiago Claramunt, Associate Curator of Birds at the Royal Ontario Museum (ROM) and Assistant Professor in the Department of ...

Some birds observed stealing hair from living mammals

Dozens of online videos document an unusual behavior among tufted titmice and their closest bird kin. A bird will land on an unsuspecting mammal and, cautiously and stealthily, pluck out some of its hair.

page 4 from 29