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Tag: "carnivores" at biology news

Prey not hard-wired to fear predators

...ic agencies increase efforts to re-introduce large carnivores to places where they have been exterminated. Berg...c agencies by restoring ecosystems to bring native carnivores back to where they once thrived.” said Dr. Berger. Berger’s study, which looked at 19 areas incl...

Despite their heft, many dinosaurs had surprisingly tiny genomes

...e National Institutes of Health. "The theropods -- carnivores such as Tyrannosaurus rex and Velociraptor -- had very small genomes, in the range of modern birds. Ornithischians -- which include Stegosaurus and Triceratops -- had more moderately sized genomes, akin to those of living lizards and crocodilians. We...

A buffet for early human relatives

...nment," Cerling says. "We cannot tell if they were carnivores or scavengers, but it is possible their diet included animals. We are picking up that signal." The new study was led by Matt Sponheimer, a former University of Utah postdoctoral fellow and now an assistant professor of anthropology at the Univers...

Tyrannosaur survivorship -- tough times for teens

...l help us to unravel the cause of death of so many carnivores at one location. "It's also surprising that something like this study has never been done before." For decades, scientists believed dinosaurs were bigger versions of living reptiles but this new research, published in the current issue of Scienc...

Wolves' top-down effect

... and subsequently recovered. Bears and other large carnivores were never completely extirpated. In addition, the researchers traced elk deaths in the high-wolf area to wolves, which also supports the major role wolves have in this trophic cascade. "Our study findings strongly bolster the use of conservation an...

Bronx Zoo bears are new Samsonite gorillas

...d strength of the grizzly bear, one of the largest carnivores in the world, means the container provides more-than-adequate protection from the black bear, the grizzly bear's smaller cousin. Unlike grizzly bears, which are found in only a handful of locations in the lower 48 states, black bears occur throughout...

Why are coyotes getting more aggressive?

.... Fearful of being hunted and trapped, these large carnivores have typically stayed in wooded areas and away from humans. But now that coyotes have started foraging in suburban areas, more research is needed to find out why and how to prevent potential conflicts with people. Curtis and his colleagues are launc...

Researchers find new giant amphibian fossils in Africa

...f Nature, describe the first and oldest amphibious carnivores from the Republic of Niger in West Africa. "This the first evidence of carnivores in this area," says McGill paleontologist, and co-author, Hans Larsson. "This find is particularly i...

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