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 ...

Fleshy fruits are more common in tropics: Phylogenic analysis

Fruits can be dichotomously classified as fleshy or dry. Although many factors have been proposed to explain the pattern that the fleshy-fruited species occur with deceasing latitude and altitude, the relative importance ...

Moose appetite for deciduous trees counteracts warming effects

Fast-growing deciduous trees can respond more quickly to a warmer climate than conifers, so climate change will influence the composition of forests through increased deciduous tree growth. But deciduous species are also ...

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, ...

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