Sentences with phrase «of land vertebrates»

The Thungyai - Huai Kha Khaeng Wildlife Sanctuaries, which run along the Myanmar border, contain examples of nearly all forest types found in continental Southeast Asia and 77 percent of the large mammals, 50 percent of the large birds, and 33 percent of the land vertebrates in the region, according to UNESCO.

But why did this lead to the extinction of up to three quarters of land vertebrates to disappear?

The sheer mass of humans and their domesticated animals is perhaps now some 99 % of all land vertebrates.

Ecuador ranks as one of the world's most biodiverse countries, and has the greatest biodiversity of land vertebrates per area.

Criswell and Gillis decided to study spinal development in skates, which are cartilaginous fishes — a distant relative of both land vertebrates and ray - finned fishes.

Dunne continued: «We now know that the rainiforest collapse was crucial in paving the way for amniotes, the group which ultimately gave rise to modern mammals, reptiles and birds, to become the dominant group of land vertebrates during the Permian period and beyond.»

So, how many species of land vertebrates are there?

Yet there is no trace of communication by learned symbolic languages among reptiles, of hair or feathers among amphibians, of the auditory apparatus of land vertebrates, or of legs or wings, among the fish.

MASS & EXTINCTION ► Humans and livestock are 97 % of land vertebrate biomass ► Humans and livestock eat 40 % of land chlorophyll biomass ► 50 % of vertebrate species died off in the last 50 years.

Not exact matches

The Bible said not all species of animals but all kinds of animals, and not all animals, only land vertebrates.

@transframer — With all due respect, you didn't really address the issues raised regarding: 1) actual # of extant vertebrate species; 2) the fact that land inverts «breath air» and would have drowned if not accounted for on the ark; 3) that the dino genera identified in the wiki link far exceeds 50; 4) the need to account for extinct land vertebrates in addition to those still around; 5) that many marine fish would have died as their habitat's salinity dropped; 6) that your % allotments for food / water don't reflect the fact that many forms require fresh meat and / or eat disproportionately to their sizes; 7) the specific dietary / environmental constraints involved in the migration to the Ark and the return trips from Mt. Ararat.

No, he killed every land vertebrate which was not on the ark: Everything on the dry land in whose nostrils was the breath of life died.

While the fossil record from this slice of the Paleozoic Era is too incomplete to say whether any of these animals were directly related or just distant cousins, the species represent the transitional nature of the vertebrate move from water to land.

Dr Weisbecker said her lab aimed to tell the evolutionary story of today's diverse land vertebrates through developmental biology.

The first group of prints — a 395 - million - year - old track created by a four - legged land vertebrate — made the cover of Nature last January.

Mortelliti, who holds degrees from the La Sapienza (University of Rome), is an Assistant Professor in Wildlife Habitat Conservation at the University of Maine, where his lab's research is focused on the impact of land - use change on vertebrate species (mammals and birds).

All land vertebrates carry a version of the FOXP2 gene, so some of the Oxford researchers then teamed up with colleagues from the Max Planck Institute for Evolutionary Anthropology in Germany to analyze what is unique about the variant in humans and to track how the gene had evolved in our ancestors.

So this is a timely book, and a fitting memorial to Everett C. Olson, one of the American coauthors, who contributed so much to the study of early land - going vertebrates.

«In Japan, many important vertebrate fossils have been discovered by amateurs because most of the land is covered with vegetation, and there are few exposures of fossil - bearing Cretaceous rocks.

The African lungfish (Protopterus annectens) has lobe - shaped fins similar to those seen in the ancestors of the first vertebrates to walk on land.

«Rainforest collapse 307 million years ago impacted the evolution of early land vertebrates.»

Researchers at the University of Birmingham have discovered that the mass extinction seen in plant species caused by the onset of a drier climate 307 million years ago led to extinctions of some groups of tetrapods, the first vertebrates to live on land, but allowed others to expand across the globe.

So say Australian biologists who have traced the origins of lung cells that let vertebrates conquer the land.

Though some freshwater fish are known to occasionally dine on land vertebrates — an African tiger fish has been filmed plucking a swallow out of the air, for example — it is rare for so many to be eaten.

In all land vertebrates (including humans), spines form from only one group of cells called somites.

The evolution of the amniotic egg — complete with membrane and shell — was key to vertebrates leaving the oceans and colonizing the land and air.

Yesterday, representatives from the National Park Service, which manages land on which many of the U.S.'s nearly 400 endangered vertebrate species live, visited the lab to sign an agreement with the museum to allow for storage of DNA samples from these species in the chilly facilities.

Sharks belong to a more basal group of vertebrates and their scales have been observed in the fossil record over the course of 450 million years of evolution, so the Sheffield researchers believe this indicates that all vertebrates, whether they live on land or in the sea, share the same developmental programme for skin, teeth and hair that has remained relatively unchanged throughout vertebrate evolution.

Before the dinosaurs, around 260 million years ago, a group of early mammal relatives called dicynodonts were the most abundant vertebrate land animals.

Soon, plant - eating animal life followed (including Arthropods such as the scorpion - like Eurypterids that moved from marine waters into brackish then fresh water — some species becoming amphibious and emerging onto land for part of their life cycle after becoming capable of breathing in both water and air — which eventually evolved into insects, and finally, by 379 million years ago, animals with backbones known as «vertebrates» which evolved from Fishes that moved onto land to evolve into Amphibians and eventually into Reptiles, Dinosaurs, Birds, and Mammals — Niedzwiedzki et al, 2010).

Although specimens of fishes, marine reptiles, non-avian dinosaurs, birds, and mammals of this age have all been recovered from this now - frozen continent, most fossils, especially those of land - living species, are fragmentary and poorly informative, and a number of major vertebrate groups that likely once lived in Antarctica (e.g., amphibians, crocodilians) have yet to be discovered at all.

Qingmendous, scientists report in the journal Science Advances on Friday, was part of a group of «lobe finned fishes» that included the first vertebrates to crawl onto land.

«And then we get complete sets of lineages we are quite familiar with: coelacanths, also lungfish, and of course our direct ancestors the tetrapods (every land vertebrate ever, plus birds, bats, dolphins and whales).»

Tail use improves soft substrate performance in models of early vertebrate land locomotors.

According to the study, retroviruses made the transition from the sea to land along with the evolution of terrestrial vertebrates.

Although vertebrate life exists on land, the reptile - like tetrapods of this period predate any mammal or bird and would certainly «swarm» upon the land.

Report on Fossil Vertebrates from Lands Administered by the Bureau of Land Management, Sweetwater, Natrona and Fremont Counties, Wyoming, under Permits 171 - WY - PA94 and PA -06-WY-142 to the Denver Museum of Nature & Science.

Common vegetarian Vitamin D supplements are Vitamin D2 (Ergocalciferol), which is a derivative of ergosterol and is not produced by land plants or vertebrates.

THE PLAIN TRUTH ► 10,000 years ago humans and our livestock occupied just 0.01 % of all the land - air vertebrate biomass on earth.

► Now humans and our livestock occupy 97 % of all land - air vertebrate biomass.

Humans and domesticated animals already occupy almost all of the land based vertebrate mass on this planet.

10,000 years ago, humans made up 1 % of the weight of vertebrate land animals: the rest were all wild.

It ended the reign of dinosaurs and opened the way for mammals and birds to become the dominant land vertebrates.

The world's 35 biodiversity hotspots — which harbor 75 percent of the planet's endangered land vertebrates — are in more trouble than expected, according to a sobering new analysis of remaining primary vegetation.