Sentences with phrase «scavenged carcasses»

Those omnivores that went extinct were in direct competition for scavenged carcasses with hominins.

This 30 - foot animal may have scavenged carcasses; markings on the bone imply its head was covered with keratin, the material in our fingernails, which might have protected its face while it tore into its food.

If the lions were that hungry, DeSantis reasoned, they must have also scavenged carcasses, a process that involves heavy bone crunching and wears down the teeth in predictable patterns.

After the poachers hacked off the tusks, villagers scavenged the carcasses for meat.

Fisher says that it isn't clear whether the knife - wielders killed the mastodon or simply scavenged the carcass, but «however humans and mastodons interacted, it took at least two millennia for the process of extinction to run to completion».

But the released birds have a high mortality rate: Some die from lead poisoning contracted when they scavenge carcasses contaminated with bullet fragments.

Throwing has played a vital role in our evolutionary past, enabling us both to hunt prey and to compete with other carnivores to scavenge carcasses.

A group of Stone Age people butchered a mastodon — or at least scavenged its carcass — some 14,550 years ago.

This resourceful bird scavenges the carcasses of large mammals and when their normal sources of food are diminished, gulls are quick to take advantage of an easy food source such as trash and leftover scraps.

When fish sources are unavailable, eagles may rely largely on carrion, especially in winter, and they will scavenge carcasses up to the size of whales, though it seems that carcasses of hoofed animals and large fish are preferred.

Not exact matches

Parasite avoidance is also a likely reason why the carcasses of herbivores are rapidly scavenged by other animals, whereas dead carnivores are not and why the latter end up providing more nutrients for invertebrates and vegetation.

Lead, which condors consume when scavenging at carcasses of animals killed with lead ammunition, is the main factor limiting their recovery; lead toxicosis was responsible for 26 % of juvenile condor deaths and 67 % of adult condor deaths between 1992 and 2009.

«I suspect we're losing a lot of breeding females,» whose carcasses are smaller and more easily scavenged.

Researchers who observed great white sharks scavenge a whale carcass off the coast of South Africa found that multiple animals fed beside each other at the same time, displaying relaxed behavior such as a belly - up posture and a lack of ocular rotation.

Hominids probably scavenged the mastodon's carcass, since its bones contain no stone tool incisions produced when an animal is butchered, they add.

It is energetically more advantageous and also safer for sharks to scavenge on carcasses rather than have to chase down live turtles.

One more unusual behavior may be explained by the hagfish lifestyle: The slime «eels» live on the sea floor, burrowing into the mud and even into dead whale carcasses to scavenge for food.

In contrast to small antelope carcasses, the heads of these somewhat larger individuals are able to be consumed several days after death and could be scavenged, as even the largest African predators like lions and hyenas were unable to break them open to access their nutrient - rich brains.

«Tool - wielding hominins at KJS, on the other hand, could access this tissue and likely did so by scavenging these heads after the initial non-human hunters had consumed the rest of the carcass,» Ferraro said.

Poachers, for instance, lace carcasses with poison to kill vultures and other birds, but only because scavenging flocks can alert antipoaching authorities to their presence.

After the fight, sharks scavenged the victim's carcass, leaving behind more than 3,000 teeth.

To get it, the humans must have either killed one or scavenged a fresh carcass.

Mexican wolves are opportunistic, and will scavenge dead elk and deer, cattle carcasses and hunter gut piles during hunting season.

They occasionally prey on livestock, and wildlife biologists believe this behavior could be exacerbated by scavenging on livestock carcasses that die from various causes.

We started scavenging the same carcasses that other carnivores — wild dogs and hyenas — lived on, and the more meat we ate, the more our guts SHRANK, «because we didn't need a giant vegetable processor anymore.»

In addition to scavenging large carcasses, our ancestors created a good way to get them, namely, by hunting in organized packs using weapons such as stone spear tips.

If your cat hunts, scavenges on carcasses or eats raw meat regularly, they will have a higher risk of tapeworm and roundworm ingestion and may require more frequent monthly worming.

Gulls, in particular, are among the major rodent predators along the California coast, and are themselves frequent prey for sea otters who stalk them from underwater, as well as scavenging fresh gull carcasses.

Hamsters, however, are unlikely to scavenge and eat the carcasses of dead animals.

Dozens of deer carcasses littered the grounds, and dogs scavenged on the decomposing remains.

There is a long list of observations of bears on land actively hunting walruses, reindeer and fish, foraging on berries or scavenging whale carcasses.