Tag: predation

Biologists knew that orcas can take down some big prey. What they didn’t know was if they could take down the biggest prey. There were stories of orcas preying on...

Around Jackson Hole, Wyoming, people are changing the ways wolves prey on elk, sometimes acting as a shield for the prey against their predators. Ungulates, like elk, in the area...

Deer collisions with vehicles dropped an average of 24% in Wisconsin counties where wolf populations have returned. Researchers believe the gray wolves (Canis lupus) created a “landscape of fear” that...

At a Marine Corps base in the Mojave Desert, biologists were finding that as ravens (Corvus corax) were increasing, endangered Mojave desert tortoises (Gopherus agassizii) were declining. Historically, ravens had...

Crafty kangaroo rats really put the kick into their jump when attacked by venomous vipers. According to new research conducted with the help of high speed video cameras, the desert...

As University of Michigan biologists were walking a night transect through the Amazon rainforest in Peru, they came across something they had never seen before. Spotting a tarantula the size...

Take a cruise from the equator to the poles and you might notice some important changes in marine ecosystem. Species diversity is greater in the tropics, and it dwindles as...

Idaho and Washington’s forests are home to only six remaining caribou (Rangifer tarandus), but soon they will have none at all. That’s because the caribou will soon be introduced to...

For thousands of years, Australia’s Aboriginal people have sung stories about sacred “firehawks” — raptors that, according to lore, use fire to hunt and introduced fire to humans. Now, merging...

Imagine baby turtles flapping their flippers on miniature treadmills before going for a swim in bright pink bathing suits. That was the scene in a Florida lab as biologists tried...