Sentences with phrase «of modern animals»

Rather, the rising levels of oxygen in the oceans became the trigger for complex life - forms to attain mobility and features of modern animals.

In the early days of modern animal behavior study two primary schools of thought dominated the field.

A grid of modern animal prints keeps the room playful.

The goal of the modern animal shelter is to provide a safe and caring environment until the animal is either reclaimed by its owner, placed in a new home, or placed with another organization for adoption.

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.

Vivid, moment - by - moment descriptions of life in the field will draw readers into this biography of pioneering environmentalist Schaller, a founder of the modern animal conservation movement.

We have recently completed the construction of a modern Animal Care Center in Blount County to be used to house animals, ensure proper medical care, perform spay and neuter procedures and act as a classroom to educate the general public about proper animal care.

The Cambrian Explosion — a burst of evolutionary innovation when most of the modern animal types originated — may have begun with a single chomp, says paleontologist Charles Marshall of Harvard University.

Studies of modern animal teeth and jaws helps inform about wear patterns on fossils.

Australian agricultural industry groups are bracing for attacks from animal activists globally following the recent release of an explosive documentary which claims to «expose the dark underbelly of modern animal agriculture».

It is only because we can match developmental events to evolutionary events, only because we now have both the fossil record, which shows us the path that evolution has taken, and the developmental record of modern animals in extraordinary detail, that we can begin to link the two.

Charles Elton, founder of modern animal ecology, has described how Huxley inspired him as an undergraduate, introduced him to key biological problems while on expeditions to Spitsbergen, and then leant on him to write his seminal book Animal Ecology, in a series edited by Huxley.

Small fossils about 220 million years old found along steep red slopes in Colorado represent a near - relative of modern animals called caecilians, says vertebrate paleontologist Adam Huttenlocker of the University of Southern California in Los Angeles.

His idea sounds simple enough: Look hard at the bones of modern animals to study the tiny marks that soft tissues make on bones, and see if such subtle marks can be found on dinosaur fossils as well.

«Lethiscus also has broad impacts on evolutionary biology and people doing molecular clock reproductions of modern animals,» says Anderson.

The findings, published online today in the journal Current Biology, resolve «Darwin's dilemma»: the sudden appearance of a plethora of modern animal groups in the fossil record during the early Cambrian period.

Parasites and disease are a huge component of the lives of modern animals, dinosaurs would be no different, and now we have another small insight into how such interactions might have looked.

Smoky Mountain Animal Care Foundation was born as a public / private partnership in 2007 resulting in funding and development of the modern animal shelter that Blount County enjoys today.

Genevieve Cahill has been a Certified Veterinary Technician since 2001 and is the owner of Modern Animal Behavior.

Dubbed the «Animal Palace,» the Falkenberg Animal Home serves as a shining example of the possibilities of modern animal sheltering.

One argument has been that evolution simply doesn't happen very quickly, but another popular hypothesis suggests that a rise in the level of oxygen in the oceans gave simple life - forms the fuel they needed to evolve skeletons, mobility and other typical features of modern animals.

But genetic studies of modern animals had suggested that all of these creatures evolved from a single - celled ancestor that lived at least 100 million years before that, leaving a huge gap between the estimated origin of animals and the appearance of the earliest known animal fossils.

After taking measurements, Ryan compared Rooneyia's ear canals with those of modern animals to determine how it would have moved in life.

Scales are visible to the naked eye; more remarkable, electron microscopy reveals double - layered skin similar to that of modern animals, and possibly even the outlines of cells.

Normally it is possible to deduce the feeding habits of fossil animals on the basis of the shape and wear of their teeth — however, the teeth of the Giant Sloth are not comparable to those of modern animals.