Sentences with phrase «of animal diversity»

All these animal forms, many of which had not been seen in the fossil record before, soft - bodied forms that tell us that all sorts of animal diversity existed as early as the Cambrian, more than 500 million years ago.

In the 43 years he spent working on this extraordinary resource, he anchored our understanding of animal diversity through the published scientific record.

Scientists think that an explosion of animal diversity and complexity began near the start of the Cambrian Period, about 541 million years ago.

Not exact matches

The country also is estimated to have the highest sheer number and diversity of plants and animals for its size, meaning it's the most dense country for biodiversity in the world.

That did not happen: there is no geological record of a world - wide flood, there is not enough diversity to regenerate the population we currently, there is not enough water to cover the earth to the height of Everest, the logistics of retrieving and returning animals to the then - unknown Americas, Australia, etc. were staggeringly difficult, managing the animals on the Ark was impossible — a few humans keeping predators from their prey, cleaning the waste, etc., pretty much all life on earth would have been killed, etc. etc..

When I was comparing humanity to the animal world, I was referring to the diversity in behaviour and the associated perceptions (assuming animal behaviour is driven by perception of their environment).

Then came the Cambrian explosion, which gave rise to a huge diversity of life forms: most types of modern animals appear in the fossil record from this era.

This organic whole that began from an initial high bang and eventuated into the present universe is distinguished by a form of unity and diversity radical beyond all imagining: infinite differences, and diversity that is marked not by isolation but by shared atoms over millennia as well as minute - by - minute exchanges of oxygen and carbon dioxide between plants and animal.

«In its 4.6 billion years circling the sun, the Earth has harbored an increasing diversity of life forms: for the last 3.6 billion years, simple cells (prokaryotes); for the last 3.4 billion years, cyanobacteria performing ph - otosynthesis; for the last 2 billion years, complex cells (eukaryotes); for the last 1 billion years, multicellular life; for the last 600 million years, simple animals; for the last 550 million years, bilaterians, animals with a front and a back; for the last 500 million years, fish and proto - amphibians; for the last 475 million years, land plants; for the last 400 million years, insects and seeds; for the last 360 million years, amphibians; for the last 300 million years, reptiles; for the last 200 million years, mammals; for the last 150 million years, birds; for the last 130 million years, flowers; for the last 60 million years, the primates, for the last 20 million years, the family H - ominidae (great apes); for the last 2.5 million years, the genus H - omo (human predecessors); for the last 200,000 years, anatomically modern humans.»

In terms of this principle, I expect, one might speak of the prima facie «rights» of nonhuman animals, at least of those that are conscious, and in a more extended sense of the term, the prima facie «right» of the natural order to its own diversity

Even granting something like the teleological order I have asserted, however, some may doubt that this formulation adequately states our responsibilities to our natural habitat, especially responsibilities to the diversity of species in the nonhuman world and to individual animals, at least within species whose members exhibit the capacity to suffer.

@ket: the diversity we see in the animal kingdom, is a direct result of the enviroment.

The same argument explained the vast diversity of kinds of animals and plants.

Not only did all kinds of animals share the earth with him, but he found that he was in some sort a part of this zoological diversity which hitherto he had regarded as being merely his neighbors.

The most passionate argument in the book, in a chapter on declining Jewish population, pleads that, after the Holocaust, Jews are an endangered species, deserving protection and enhancement for the sake of diversity, like the bald eagle: «You have friends who work to rescue endangered animal and plant species, so you know why this matters.»

Heritage Fire is the nation's only hyper - local, whole animal live - fire outdoor culinary event cooking 3,000 pounds of heritage breed animals in celebration of pasture diversity and family farming.

Heritage Fire will showcase more than 45 notable chefs and butchers from Colorado alongside top chefs from around the country, cooking 3,000 pounds of heritage breed animals in celebration of breed diversity and family farming.

Since organic farms are mostly mixed farms, integrating animal husbandry with crop production, using vast and diverse rotations, intercrops and green cover crops, and maintaining soil fertility by cultivating nitrogen fixing legumes, they display a higher diversity of domesticated species than conventional farms.

Species diversity: the different types of plants, animals and other life forms within a region or community;

The principal differences between organic farming and conventional farming are the former's extensive restriction of the use of artificial pesticides, fertilisers and other agro-chemicals; its hostility to the agricultural application of biotechnology; its rejection of the routine use of pharmaceuticals on livestock; its attention to animal welfare; and its focus on crop rotation, soil quality and maintaining biological diversity as alternatives to chemicals.

Agencies that maintain databases of animal and plant diversity will get a one - time, $ 40 million grant for upgrading laboratories.

She hopes the detailed look in the new paper will inspire more analysis of the diversity of predation, including animals that hunt by ambush.

Just how complex has been emphasised anew with a slew of studies that highlight the staggering diversity of sexual practice in the animal kingdom.

«I've spent a lot of time over the years looking at other isotopes from a diversity of fauna on the island and have answered all sorts of questions about animal interactions and ecological change, but big questions remain unanswered about differences in mobility among organisms as well as changes in their mobility over time.»

«The distribution of lifespan and growth with latitude might help explain one of the more fundamental patterns in the evolutionary and ecological history of animal life on the planet: the latitudinal diversity gradient.»

GOING VIRAL The diversity of viruses carried by such animals as rhesus macaques (one shown) hints at the number of viruses capable of infecting humans that are yet to be discovered.

When on the low - fiber diet, animals showed a decrease in the diversity of their microbiome, with 60 percent of the bacteria species plummeting in numbers compared with their high - fiber friends.

«The herbivores created space for other plants and animals to move in and we saw much more diversity and variety in these ecosystems,» said Rebecca Kordas, the lead author of the study who completed this research as a PhD student in zoology at UBC.

The impact of this social structure on the genetic diversity of animals has been a source of disagreement between scientists.

Their work published Aug. 13 in the journal Animal Conservation «Recovery of Gene Diversity Using Long - Term Cryopreserved Spermatozoa and Artificial Insemination in the Endangered Black - Footed Ferret.»

An evolutionary burst 540 million years ago filled the seas with an astonishing diversity of animals.

That's the conclusion of one of the most accurate analyses ever of diversity in the marine animal fossil record.

More than 540 international expeditions sailed to coral reefs, hydrothermal vents, seamounts, and open ocean waters to assemble a comprehensive picture of the diversity, habitats, and abundance of animals and microbes living in the sea.

«Studying these specimens and comparing them with modern - day animals also helps to pinpoint existing populations that have retained some of the past genetic diversity, much of which has been lost to industrialized breeding.

For millennia, humans have marveled at the seemingly boundless variety and diversity of animals inhabiting the Earth.

The ambitious census was born 3 years ago, after marine biologists realized that new technologies — from sensors that can track individual fish and whales to genetic «bar code» readers that can speedily separate microscopic species — could revolutionize efforts to document the diversity, distribution, and abundance of ocean animals.

«Both malaria and Helicosporidium started out as alga and ended up as intracellular parasites preying on animals, but they have done it in very different ways,» says Keeling, director of the Centre for Microbial Diversity and Evolution at UBC and a Senior Fellow of Canadian Institute for Advanced Research.

Furthermore, cubs had a higher diversity of parasite species than older animals.

However, the animal kingdom is host to an incredible diversity of sperm forms, explains Scott Pitnick, the lead author of a new study in Nature and Weeden Professor of Biology in the College of Arts and Sciences.

The U.S. Fish and Wildlife Service (FWS), which is responsible for establishing habitats for endangered animals, had promised to announce a designated area for jaguars (Panthera onca) by January 2011 — after being sued by the nonprofit groups Center for Biological Diversity (CBD) and Defenders of Wildlife.

A recent study by scientists at the University of Adelaide and the Center for Biological Diversity (CBD) looked at which American animals made the ESA list, and which didn't.

(Roughly, the more bison there are, the greater their genetic diversity and the longer it will take to find the common ancestor of two animals chosen at random — just as one would expect residents of a small English village to be more closely related than two people picked at random from the world population.)

Dr. Frankel is currently directing or co-directing projects related to the ethical and policy implications of human germ - line interventions, the responsible use of animals in biomedical and behavioral research, improving patient safety and reducing errors in health care, the ethical dimensions of the Human Genome Diversity Project, the uses of anonymity on the Internet, and intellectual property and ethical standards for electronic publishing in science.

In his study, recently published in the scientific journal «Frontiers in Ecology and Evolution,» he concludes that the reintroduction of large animals in certain parts of the world could have a positive effect in regard to species diversity.

Previous work in Atlantic salmon has shown that the diversity of genes coding for the MHC binding site is lower in animals that typically live in lower temperature conditions.

«It suggests there was an immense amount of diversity in the intermediary land and aquatic animals,» Shubin says, «which tells us evolution was less a stepwise progression than a lot of false starts.»

The old hypothesis hinged upon the fact that many of the early mammal fossils that had been found were from small, insect - eating animals — there didn't seem to be much in the way of diversity.

In their study, published in the scientific journal Peer J, the scientists demonstrate that the species diversity of both groups of animals was noticeably higher in the past than it is today.

Each patch may be a diverse habitat of plants, animals, and insects but it is equally important that the landscape «quilt» is made up of a diversity of patches that are different from each other.

«We expected the elites to have the greatest diversity [in consumption of animal species], but it wasn't like that.