Sentences with phrase «of big mammals»

It was about the extinction event of the big mammals in North America about 13K years ago.
Her favorite, Jacquelyn says, is a fungus that grew on the dung of big mammals.
Why not celebrate the big day with some of the biggest mammals to roam the ocean?
So you better go back to your bars, your temples, to your baishunfu, and think about WHY you want to kill so many of the biggest mammal around.
Though small mammals suffered some losses, a third of their big mammal cousins (including mastodons, mammoths, and the short - faced bear) became extinct.
By then, Australia had lost roughly 88 per cent of its big mammal groups, South America 83 per cent, and North America 72 per cent.

Not exact matches

You say the Bible is full of fairy tales and fables, yet you believe all life forms including plants, trees, insects, birds, fish, reptiles and mammals evolved from one species into another — As if evolution isn't the biggest fairytale of them all.
You say the Bible is full of fairytales and fables, yet you believe all life forms including plants, trees, insects, birds, fish, reptiles and mammals evolved from one species into another — As if evolution isn't the biggest fairytale of them all.
DR. STACEY MERLO: They are important for birth because human babies have the biggest head of almost any mammal that gets passed through and we're actually delivering babies earlier than their full term development because of the size of the head and all of us have had babies in the room and we know that that's the hardest part.
Hyraceum, also called «Africa stone,» is the petrified and rocklike excreta of the rock hyrax, a medium - size mammal that looks like a big guinea pig and whose closest living relative, oddly, is the elephant.
The jaguar (Panthera onca)(Brazilian Portuguese: onça pintada) is a New World mammal of the Felidae family and one of four «big cats» in the Panthera genus, along with the tiger, lion and leopard of the Old World.
Fences allow lions and other wildlife to survive on fragments of land on which it would otherwise be impossible to conserve large mammals because they keep big animals from coming into conflict with humans, livestock and agriculture.
BIG DEATH: Some argue that widespread extinctions of large mammals, stretching as far back as 40,000 years ago, deserves recognition as the starting point of any human - induced epoch.
In fact, the big killer diseases of history all came to us from microbes living in other species, overwhelmingly from other warm - blooded mammals and, to a lesser extent, from birds.
As an international study conducted by the University of Zurich based on 3D reconstructions of animal skeletons reveals for the first time: Herbivorous mammals have bigger bellies than their usually slim carnivorous counterparts.
The result: On average, herbivorous mammals have a body cavity that is twice as big as carnivores of a similar body size.
«The big question about why we mammals affiliate with one potential partner versus another finally has a handle we can use in a small animal model,» says Lucy Brown at the Albert Einstein College of Medicine in New York.
That big surprise reinforced a growing realization among geneticists: Our genomes and those of other mammals are far more flexible and complicated than they once seemed.
«We don't yet know whether cats or loss of habitat is the biggest contributor to the widespread mammal decline that we are seeing in Australia.
The analysis identifies habitat loss and hunting as the biggest reasons behind the decline of land mammals; marine species face additional threats, including pollution and accidental death in fishing nets.
Despite mechanized overharvesting, satellite fish tracking, and prolonged butchery of sea mammals, the ocean is still bigger than we are.
The biggest tract of virgin forest in the eastern United States, this park retained forest - dwelling mammals and birds long extinct in central Maryland.
In spite of their size, these big mammals were extremely vulnerable, as are modern elephants.
He argued that creating generation after generation of virgin - born mammals would not only help to improve and accelerate the breeding of livestock (producing big males for the sake of a little sperm slows down breeding), but would yield new insights into disease, genetics and the function of sex itself.
Based on the new study's findings, S. melilutra's jaws would have been strong enough to crush the shells of big mollusks or the bones of birds and small mammals like rodents, though what exactly it ate is unknown.
Fossil skulls of two ancient, mammal - like reptiles suggest that natural selection for a keener sense of smell was the initial spur behind bigger brains in early mammals, according to a report online today in Science.
The authors suspect that the presence of big teeth in fossil sperm whales may suggest that they were feeding on large prey, perhaps marine mammals such as seals and other smaller whales as opposed to modern sperm whales, which feed primarily on squid, hardly using their teeth for chewing.
«This find means that, around 15 million years ago when there were a lot of large sperm whales with big teeth like Albicetus, it may have been a moment of peak richness in the number and diversity of marine mammals serving as prey to these whales,» Boersma suggests.
Nicholas Longrich of Yale University was examining T. Rex bones for signs that mammals had gnawed on them when he found that four bones bore large tooth marks that could only have been made by another big predatory dinosaur.
That may seem a bit fantastic, but it's harder to dispute that, in the cause of finding a mate, the male mammal has evolved to become bigger and stronger than his female contemporary.
But, relative to body size, primates have much larger brains than any other animals, and we humans, not surprisingly, have the biggest brains of all — about six times larger than you would expect for a mammal of our size.
Some 400 of the big aquatic mammals died in 1996, the largest death toll in 22 years and nearly double the previous record.
The small, stumpy Y chromosome — possessed by male mammals but not females, and often shrugged off as doing little more than determining the sex of a developing fetus — may impact human biology in a big way.
Many of the most at - risk species (including some turtle, shark and marine mammal species) are not fully protected, even in parks as big as the PRIMNM.
Over the past 65 million years — as the earth froze, thawed, flooded, and dried — mammals spread to every continent and became big names on the stage of life.
They do this by looking at the electrical activity of individual neurons in a live mammal brain to build a bigger picture of its function as a whole organ.
Liang thinks rats make better models of human feeding behaviors than mice because rats are bigger mammals and eat significantly more than mice, making it easier to measure their food intake.
But over the past 20 years a flood of discoveries has shown that mammals thrived and diversified in the heyday of the dinosaurs, and a new study suggests that our ancestors and relatives had a big evolutionary burst millions of years before dinosaurs flew the coop.
In «The Voice of the Dolphins,» which is a tale about how the nuclear arms race ultimately ended in the 1980s, he wrote in the 1960s that there was a joint U.S. - Soviet study center in Vienna and that they enlisted dolphins, who had the biggest cranial capacity of any mammal, and they taught them language and they taught them math and the dolphins worked up all these wonderful solutions that won them Nobel Prizes.
Large carnivores and herbivores (bigger than 10 kilograms or 22 pounds) comprise a small percentage of all mammals listed but tend to be impacted more severely by overhunting, the researchers reported.
Our hero is the ever - optimistic Judy Hopps (Ginnifer Goodwin), a young bunny from the country who dreams of being the first rabbit on the police force of Zootopia, a big wonderful city where all types of mammals live together in harmony.
Once in the big city, however, the diminutive Judy is overshadowed by her towering fellow cops — rhinos, elephants, hippos and so on — and summarily dismissed by Police Chief Bogo (Idris Elba), a surly cape buffalo who assigns Judy meter - maid duty instead of allowing her to assist in the investigation of a rash of missing mammals.
I don't see the new shape of things as many do: the twilight of the dinosaurs, the old - thinking Big Five print publishers staggering, falling to their knees and heading for extinction as they're overwhelmed by a nimble army of small, warm - blooded mammals whose claws are the sharp, smart, flexible tools of electronic publishing.
In a report by the World Conservation Union surveying 1,173 threatened bird species, habitat loss was the biggest threat, affecting 89 percent of all threatened birds and 83 percent of the threatened mammals sampled.
There was a big knock - down of foxes and an immediate resurgence of native birds and mammals like the tammar wallaby, the critically endangered brush tailed bettong, or woylie, and the western ground parrot.
There was a big fall in the fox population and an immediate resurgence of native birds and mammals like the tammar wallaby, the critically endangered brush tailed bettong (also known as the woylie) and the western ground parrot.
Its proposed list runs to almost six pages of classes, orders and families including birds, amphibians, reptiles, fish and small mammals, in addition to the anticipated primates and big cats.
In fact the Boma national park — actually, an unchecked wilderness the size of Rwanda — is host to the biggest migration of mammals on the planet.
Because instead of driving for hours along vast stretches of sand road without a sighting, the Pilanesberg's generous grasslands, rocky outcrops, sloped hills, dense pockets of vegetation, and thickly wooded gorges are home to the Big Five and 30 other mammal species besides.
Recently, he teamed up with The Marine Mammal Center and International Bird Rescue to narrate a series of seven webisodes, called The Big Picture.
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