Sentences with phrase «human hunting»

Perhaps the most outrageous is the claim of humans hunting Ice Age species to extinction.

The main reason for humans hunting large mammals to extinction was hunger.

This is mostly because humans hunt and eat by day and once the sun went down, well, you just couldn't see the food in front of your face.

It could also inform debates on whether human hunting practices directly led to the extinction of some species.

In contrast, other species such as primates and the lowland tapir are not devoured by as many predators and can't cope with human hunting.

Cuts and scrapes on the mammoth's bones came from human hunting weapons.

Or is that threatened by human hunting methods, which are «indolphine»?

Early humans hunted with throwing spears in sub-Saharan Africa for more than 500,000 years — leading their increasingly watchful prey to develop better flight or fight survival strategies, Coss said.

According to one hypothesis, prehistoric humans hunted most of the mammoths out of existence soon after coming into contact with them.

«The extreme selectivity of the modern extinction threat with respect to body size is best explained by the size bias in human hunting and fishing activities, which often preferentially target the largest animals in the oceans, or the largest animals within their respective taxonomic groupings,» said Payne.

Although researchers can only speculate on what prehistoric artists were trying to express, hypotheses range from shamanistic and ritualistic activities to attempts to capture the spirit of horses and other animals that ancient humans hunted.

And it's all about saving the bandicoot, which seems to be having a very difficult time surviving the changes it's currently facing, which also include human hunting, introduced predators and habitat loss:

They believe a virus found in chimpanzees jumped species and mutated into HIV sometime in the late 1800s, when humans hunting chimps for meat were exposed to the animals» blood.

It is estimated by historians that in 30,000 B.C., Paleolithic humans hunted alongside wild dogs.

The archaeological record shows humans hunted moas, perhaps to extinction.

This was either because their populations could not withstand human hunting, or for indirect reasons such as the loss of their prey, which were also hunted by humans.

Big dogs may have helped humans hunt dangerous carnivores, such as cave bears, hyenas and cave lions.

And, largely because of human hunting over the last few centuries, the capacity of whales, and other marine mammals, to move one vital nutrient — phosphorus — from deep ocean waters to the surface has been reduced by more than seventy - five percent, the new study shows.

Apparently, Neanderthals and modern humans hunted the same prey in the same way.

EARLY ARRIVALS Excavations at a Brazilian rock shelter near the center of South America (left) suggest that humans hunted giant sloths there more than 20,000 years ago.

A sharp decline in the genetic diversity of fossil bison in Eastern Siberia and North America began about 35,000 years ago, when glaciers were advancing, not later when human hunting peaked.

According to a new study, the thylacine was struggling even before humans hunted them to extinction.

Human hunting changes brown bear reproductive strategies, so that the cubs stay with their mother longer.

«The idea that humans hunted Neanderthals to extinction as part of the megafaunal extinction is new,» said Stewart.

Eve lives in Tangiers, similarly disdaining actual human hunting, and pals around with Christopher Marlowe (a wonderfully world - weary John Hurt)-- that's right, the Elizabethan poet and playwright, long undead — who is her black - market connection to her own blood supply.

Once these emotive nodes are tickled and the scene set, it's a rollercoaster ride of tense house invasions, grisly (and botched) self - surgery and resourceful human hunting from an inept tramp.

The polar bears can breathe a sigh of relief — now, they just need to worry about humans hunting them...

Dr Nic Rawlence, who carried out the genetic study, says the team found a very distinctive pattern, where shag / mapua (Leucocarbo chalconotus) populations from the Stewart Island region were little affected by human hunting, but mainland populations were rapidly decimated.

Orangutan numbers on the Southeast Asian island of Borneo plummeted from 1999 to 2015, more as a result of human hunting than habitat loss, an international research team finds.

An international research team led by University of Otago scientists has documented prehistoric «sanctuary» regions where New Zealand seabirds survived early human hunting.

«By showing drastically different wildlife histories — between regions that are climatically similar — we can start to understand the major impact of prehistoric human hunting, which differed across space and time,» Professor Waters says.

A new study shows that the reason there are so few large mammals left today is that ancient humans hunted them to extinction.

A number of theories have been developed over the years to explain more recent extinctions such as those at the end of the last ice age, including human hunting, climate change, disease, and even a cosmic impact such as an asteroid or comet.

«Until now, it was believed that Paleolithic humans hunted and ate mostly large game and vegetal material,» said Prof. Barkai.

«Combining the threat from human hunting and fishing activities with the stresses imposed by ocean warming, acidification, and de-oxygenation is likely to compound the stresses imposed by hunting and fishing activities in the future.»

Researchers have suggested that human hunting might have quickly driven animals such as the mastodon to extinction, but the spores were most abundant 13,700 years ago and did not disappear until around 12,600 years ago.

Humans hunt the forest - dwelling apes for food, or to prevent them from raiding crops, the investigators say.

«African animals were adapted to human predation pressure after 2 million years of hunting, but South American mammals had no previous experience of human hunting,» Fiedel explains.

In the prey model, humans hunt the animal — typically a large herbivore — but instead of killing it, they keep it around for future use in a kind of resource management.

However, the team found that female bears only rarely visited the remains of these human hunts.

Alarmingly, however, most bandicoot species are under dire threat of extinction from introduced predators, habitat loss, and human hunting,» says Dr Benjamin Kear from the Museum of Evolution at Uppsala University, and lead author on the study.

Many scientists think that the tree evolved these metamorphoses to avoid moas, the main herbivores on the islands and a relative of emus and ostriches that humans hunted to extinction.

Current competing hypotheses for the mammoth's extinction point to human hunting or climate change, possibly combining in a deadly one - two punch.

(Human hunting may also play a role, as appears to be the case in bears.)

And although there is no direct evidence — like cut marks on monkey bones or monkey bones found in trash heaps — of humans hunting the monkeys for food, Cooke says that in addition to hunting, the clearing of land for farming and the introduction of invasive species can all put a deadly strain on native island populations, which are adapted to a very specific environment and have nowhere else to go.

These empty - headed too - old - to - be-frat-boys get caught up in a terrible game of human hunting and the events that follow will never leave you once you've seen them.