Sentences with phrase «than mammals»

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

We studied this molecular pathway in flies because they are reasonably complex and yet age more quickly than mammals.

The putting - into - an - egg step turns out to be harder in birds than mammals.

Advantage kills adult fleas on the host, by interfering with normal nerve transmissions, affecting a pathway that is more important in insects than mammals.

That Steve was named Steve was also revealing: Octopuses are the only animals, other than mammals like cuddly seals, that aquarium workers bother to name.

Many products are neurotoxic insecticides that work on specific nervous receptors which adult fleas, ticks, and other insects have in greater quantity than mammals like cats, dogs, and people.

Sheep also live much longer than mammals such as mice and rats, enabling us to study diseases that affect humans in their adult lives, including neurodegenerative diseases such as Huntington's disease.

To figure out TB's devious tricks, a team led by Stanford University microbiologist Stanley Falkow investigated a close relative of TB, one that infects frogs rather than mammals.

A stocky six - foot - long carnivore that hunted smaller reptiles on the warm plains of what is now South Africa, it had a metabolism that was higher than a reptile's but lower than a mammal's.

Ounce for ounce birds have significantly more neurons in their brains than mammals or primates.»

Although she acknowledges that the relationship between intelligence and neuron count has not yet been firmly established, Herculano - Houzel and her colleagues argue that avian brains with the same or greater forebrain neuron counts than primates with much larger brains can potentially provide the birds with much higher «cognitive power» per pound than mammals.

The hype on dinosaurs has portrayed some species as veritable roadrunners, faster than mammals such as rhinos and elephants.

«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.»

This places cacti among the most threatened taxonomic groups assessed on The IUCN Red List of Threatened Species ™ — more threatened than mammals and birds.

For decades, if not centuries, scientists rejected the notion that animals other than mammals actually play, even when faced with observational reports of frolicking fish or apparently fun - loving birds.

They also use each brain cell more flexibly than mammals.

«Since birds and fish are older evolutionarily than mammals, prolactin's larger role beyond just feeding offspring tells us prolactin has evolved to become more specialized for lactation behaviors in mammals,» she said.

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.

Birds experience much shorter sleep cycles than mammals, as short as just a few minutes in NREM and several seconds in REM sleep.

However, reptiles and amphibians have a much slower metabolism than mammals and produce much less waste.

This is because the Lyme vector in these areas is primarily Oxides pacificus, a tick that strongly prefers to feed on reptiles rather than mammals.