Sentences with phrase «with modern mammals»

Inspired by the success of his experiments with modern mammals, Hillenius decided to do a systematic search for turbinal ridges in the fossil skulls of mammallike reptiles.

This means Yanoconodon not only picked up the high frequencies associated with modern mammal hearing but also the vibrations transmitted through the ground.

Not exact matches

«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.»

Mammals, starting with the Australopithecines have been on the earth for 2 to 4 million years.19 Modern Homo sapiens have been around for 30,000 to 35,000 years.

With modern advances in DNA sequencing technology, detecting the presence of forest mammals based on DNA detection in the guts of invertebrates has become a potential approach to study the diversity of forest mammals.

Ophiacodon probably isn't directly ancestral to modern mammals, and its «warm - blooded» characters show that it may have evolved it in parallel with mammals, which itself is interesting.

Small, furry and with a penchant for insects, the greatest grandparent of all modern placental mammals lived after the dinosaurs were wiped out

Yet two ancient anklebones from Pakistan indicate that whales are descended from artiodactyls, a group of even - toed hoofed mammals that includes modern sheep, cows, pigs, and camels — along with hippos, which appear to be whales» closest living relatives.

Meet our last common mammalian ancestor Small, furry and with a penchant for insects, the greatest grandparent of all modern placental mammals lived after the dinosaurs were wiped out.

With colleagues, he used common features in the genomes of 36 modern mammals to sketch out the genome of the creature from which they descended.

«With each new discovery it becomes increasingly clear that the [earliest] mammals had the same evolutionary mechanisms as modern mammals,» he says.

It looked like a squirrel with a long snout instead of a short one, the team reports, with curved, horny claws and flexible ankle and wrist joints typical of modern climbing mammals like squirrels and monkeys.

These adaptations may have played an important role in the later success of modern mammals once the dinosaurs went extinct about 66 million years ago, says Richard Cifelli, a vertebrate paleontologist at the University of Oklahoma, Norman, who was not involved with the work.

Then there are the almost countless fish, some with the tail of a smaller fish grotesquely hanging out of their mouths.These fossils offer more than beauty: they preserve in wonderful detail early forms of modern birds and mammals, including the first bats in the fossil record, making them vital windows into evolution.

The man's lactose intolerance is the one thing that was not surprising, since a hunter - gatherer would not drink milk beyond infancy — just like other mammals and all modern humans with the exception of those who come from milk - drinking cultures, Carles Lalueza - Fox explained.

In order to reinforce their results, the scientists compared their data with more than 200 bones from modern mammals, whose diet is known, as well as with fossil specimens from both carnivores and herbivores.

«Conclusion: As physical activity expenditure has not declined over the same period that obesity rates have increased dramatically, and daily energy expenditure of modern man is in line with energy expenditure in wild mammals, it is unlikely that decreased expenditure has fuelled the obesity epidemic.»

The city boasts a modern skyline and churches dating from the 1500's; late night discotheques and inviting parks with lush, tropical vistas; living museums for marine mammals as well as World War II shrines.

Immerse yourself in modern luxury at Dolphinaris Park Riviera Maya, the only interactive dolphin park in the world where you'll get to know these fun - loving mammals throughout and enrichment half day experience in a dramatic setting with towering palapas, swaying palm trees and warm tropical style.

Don't miss your chance to swim with the most intelligent and friendly of marine mammals, the dolphins, at our modern habitats throughout the region.

And thus it would have meant the end of human civilization and essentially all modern mammalian — including human — life on essentially almost all the planet, since modern mammals can not survive with typical summertime afternoon heat indexes around 200 degrees F or have viable populations at even just 150 degrees F without suitable microenvironments to retreat into.)