Sentences with phrase «than mammals do»

Still, insects exercise impressive information management: They pack neurons into their brains 10 times more densely than mammals do.

Not exact matches

This has to do with the closer link between the mother and her offspring, a fact which humans share with all mammals: the perpetuation of the genetic line is more dependent on the females» constant care and attention than upon the males».

Since mammals didn't exist earlier than about 210 million years ago, clearly new species have arisen.

Example in point: Opposition to embryonic stem cell / human cloning research: It isn't anti science to oppose treating nascent human life like a corn crop or manufacturing embryos, anymore than it is anti science than the Animal Welfare Act the proscribes what can and can't be done in scientific research with some mammals.

But, I was always amazed that there's a feeling that your breast milk turns into water and that how's the mammal out there that needs better milk for human than a human does.

(Aquatic mammals store much more oxygen in their muscles than humans do and so can remain without for longer.)

And so did the scent of chemicals from the armpit, called axillary secretions, some of which are found at higher concentrations in male mammals than in females.

They did significantly better than expected by chance, and three researchers who had experience with dolphins were able to correctly identify all the animals, the team reported last month in Marine Mammal Science.

«They look very different than mammals today,» says team member and paleobiologist Kenneth Angielczyk of Chicago's Field Museum,» similar to the way a T. rex doesn't look much like a goldfinch.»

Not only did mammals begin diversifying earlier than previously expected, but the mass extinction wasn't the perfect opportunity for mammal evolution that it's traditionally been painted as.

Two decades after the war ended, field surveys done there turned up a large number of species unknown to science, including no fewer than five large mammals.

The find pushes back the earliest record of mammalian internal organs and well - preserved fur by more than 60 million years, and shows that ancient fur and spines formed just as they do in today's mammals.

How does one know that such evidence points to a common origin, rather than separate but convergent evolution of sleep in reptiles, birds and mammals?

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.

Mammals maintain a high body temperature because they burn food faster than reptiles do, which means they must take in more oxygen, which means they must breathe faster.

Observation of REMs (Rapid Eye Movements) during periods of sleep suggest that dolphins and whales are the only mammals, other than the primitive echidnas, that do not dream.

Moreover, because some bird lice seem to have deeper evolutionary roots than mammal lice do, the team suggests that birds — whose feathers make a good roosting place for lice — became infested first and then passed the pests on to mammals.

But another sequence, the gene's so - called unidentified domain (UD), appears to have changed extremely rapidly in humans — about seven times faster than it did in other mammals — and shows signs of being positively selected for in evolution.

Yet he cautions that the «conclusions of the paper are overstated» because the study does not prove that prehistoric lice were actually infesting the direct ancestors of today's bird and mammal species rather than other animals that may have led to evolutionary dead ends.

This gap in knowledge led to a debate over the shape of the mammalian evolutionary tree: Did haramiyids belong on the crown mammal branch, from which all modern mammals descend, suggesting that mammals began to diversify more than 210 million years ago in the Triassic?

Mammals move less in human - modified landscapes (25/01/2018) On average, mammals move only half to one third of the distance in human - modified landscapes than they do in thMammals move less in human - modified landscapes (25/01/2018) On average, mammals move only half to one third of the distance in human - modified landscapes than they do in thmammals move only half to one third of the distance in human - modified landscapes than they do in the wild.

Interestingly, the mammalian Boule proteins appeared to share higher sequence similarity than insect homologs despite the fact that mammals have an additional Boule - like protein, Dazl, suggesting that the presence of Dazl did not relieve the selective pressure on Boule in any significant way.

Mammals have faster rates of digestion than more primitive animals do thanks to small, finger - like projections called «microvilli» that increase the surface area of the intestines by about seven-fold.

Dogs are more complex than a light switch... flip the switch up, the light goes on... but it doesn't work that way with animal behavior, especially higher animals such as mammals.

Current research shows that the genomes between avian species have much less copy number variants than do those of mammals.

We know that your dogs, cats, birds, small mammals and reptiles are more than just pets, and you expect the same level of concerned care for them as you do for the rest of your family.

Polar bears are already protected under the Marine Mammal Protection Act, which has more stringent protections for polar bears than the Endangered Species Act does.

Also named Britain's favorite mammal by the Royal Society of Biology; if there's any doubt, it doesn't get more British than the visual aid below.

And then when you consider that (1) humans are a tiny percentage of the total animal biomass on Earth — probably well under 1 % — and that most animals emit more CO2 on a per - pound - of - body - weight than humans do (especially small mammals and birds, which can emit 6 times or more CO2 per pound of body weight than humans)-- you're now looking at SEVERAL HUNDRED BILLION TONS OF CO2 from animal reespiration alone — on top of all the other natural sources of CO2.

When the reptile or mammal within us perceive a threat to our self - esteem or the strength of our connection to our partner, it reacts faster than our prefrontal cortex, and makes us feel and do things out of instinct and fear.