Sentences with phrase «used by mammals»

In the Mount Sinai study, the results found that the defense system used by invertebrates — RNA interferences or RNAi — is not used by mammals as some had argued.

Not exact matches

The poison was unsafe in the years when it was used only by the trained mammal - control agents of the U.S. Fish and Wildlife Service; it is manifestly unsafe now that it is also being used by the zealous sheepmen of the West.

Humans are the only mammals on the planet who suffer from post - partum depression and post - partum psychosis - we are also the only mammals on the planet who are drugged during birth, nurse by a clock, don't sleep with our babies, time our nursing sessions, supplement with formula, use pacifiers (and a myraid of other behaviors that disrupt ancient hormonal production during lactation).

The law, introduced by Labour in 2004, bans the use of dogs to hunt foxes and other wild mammals in England and Wales.

The only mammal with electroreception, it uses sensors in its bill to detect electrical impulses sent out by prey in murky water.

Fascinated by the anatomy of horses and other animals in motion since his teens, Horváth knew that most four - legged mammals (except primates) walk using a specific footfall sequence — left hind, left fore, right hind, right fore — for maximum stability.

By measuring the loss of a core tranche of dominant species of large and medium - sized mammals and birds, and using the results as a bellwether, the researchers found that for every 10 % of forest loss, one to two major species are wiped out.

Until now, scientists were unable to prove that mammals use RNAi for killing viruses, but ironically, it was Ding's earlier research into plants, nematodes and fruit flies that helped him find the key: viruses have been outwitting that innate protection in our cells by using proteins to suppress our virus - killing mechanism.

When my daughter was young, I tried explaining evolution to her by using polar bears as an example of a «transitional species» between land mammals and marine mammals, but that was wrong.

He cites a recent study, for instance, conducted by an international team of molecular biologists that used the DNA of living placental mammals to estimate that their ancestors originated more than 100 million years ago.

Heaney, Balete, and Rickart are also authors of a book about the mammals of Luzon Island, just published by Johns Hopkins University Press, that will be used in the Philippines as a college - level textbook.

In nearly all Lepidoptera — the order that includes moths and butterflies — sex is determined by a WZ chromosome system, in contrast to the XY system used in mammals.

Marine mammal advocates are optimistic that the Panama Declaration, an international agreement signed in 1997 by several Eastern Tropical Pacific countries and others that bans using dolphins to track tuna, has already helped curtail the process that has been so destructive.

Biologists have long wondered if mammals share the elegant system used by insects, bacteria and other invertebrates to defend against viral infection.

«Many species of African birds, mammals and reptiles use the burrows dug by aardvarks to escape cold and heat, to reproduce, and to avoid predators.

Hosts infected by viruses found new uses for the genetic material the agents of disease left behind; metabolic enzymes somehow came to refract light rays through the eye's lens; mammals took advantage of the sutures between the skull bones to help their young pass through the birth canal; and, in the signature example, feathers appeared in fossils before the ancestors of modern birds took to the skies.

In the subsequent Marine Mammal Science paper just out, the catches were among the key pieces of information used to model the size of the California blue whale population over time — a model previously used by other groups to estimate populations of hundreds of fish and various other whale species.

«Eavesdropping on Bering Strait marine mammals: Researchers are eavesdropping on marine mammals within the Bering Strait via «passive acoustic monitoring» to observe changes in the ecology of the Pacific Arctic by documenting the use of this region by species previously excluded by sea ice.»

In this case, the researchers used a set of compounds, recently synthesized by Cravatt's laboratory, that tend to inhibit serine hydrolases — a vast enzyme family whose members participate in most biological processes in mammals.

To do this, the researchers use underwater microphones called hydrophones on oceanographic moorings to listen for the sounds made by marine mammals.

Three different methods were used by the team to investigate the range and variation of the mammals present and all showed an explosion in mammal diversity after the dinosaur extinction.

The test of how well these instruments can detect different species of marine mammals, and over what distances, is just the first step towards using acoustic data collected by gliders and floats to estimate marine mammal density and abundance.

Most recently, they are being used to demonstrate how to better identify Important Marine Mammal Areas in need of protection, an initiative being led by the IUCN (International Union for Conservation of Nature).

Now, by using an ultrasound machine to take a close look at her unborn offspring, the researchers have figured out how manta ray embryos get oxygen without a mammal's life - support equipment.

All animal - related work reported in this manuscript was permitted under the U.S. Marine Mammal Protection Act by the National Marine Fisheries Service Permit 808 — 1735, the Antarctic Conservation Act Permit 2009 - 014, and Duke University Institutional Animal Care and Use Permit A041 -09-02.

The microorganisms are used as food by other organisms, such as fish and ocean mammals, making the iron available to other creatures in the food chain.

LA JOLLA — A team of investigators led by Salk Professor Inder Verma has received a $ 1.2 million grant from the W. M. Keck Foundation to generate transparent tissues in mammals using...

This fear is highlighted by the controversial (and consequently delayed) publications in Nature and Science, in which two research teams — led by Yoshihiro Kawaoka of the University of Wisconsin — Madison and Ron Fouchier of Erasmus Medical Center in Rotterdam — reported the creation of new variants of H5N1 influenza that are transmissible between mammals through the air, sparking fears that this information could be used to produce a bioweapon that is highly infectious to humans.

However, it is clear that in the world dominated by humans certain ecological «rules,» such as the correlation between large mammal diversity and plant biomass, no longer apply in the same way as they used to do for millions of years.

The first type is obtained by using rennet — a complex of enzymes secreted by the stomach of mammals, or an edible acid.

Judy does manage to come up with a lead on a missing mammal and, given just 48 hours to pursue it by the captain, uses clever legal leverage to secure the help of the shady fox Nick Wilde (a superb Jason Bateman).

At the same time, these theories were then being used by trainers on animals, especially on mammals such as dolphins.

The odiferous material they normally produce is used by dogs, cats, and other small mammals to lend a unique scent to their stool, thereby identifying it as their own.»

Cats Hawkins used track plates (baited devices that detect the presence of mammals by way of preserved «footprints») for «estimating a relative cat presence index,» but found only one cat track in 200 track plate nights.

Used in the past by marine mammal trainers, clickers are small, hand - held devices that make a clicking sound when one side is compressed.

Figures of «hundreds of millions» of birds killed annually by cats may have been extrapolated from statistically poor sample sizes using a simple mathematical scaling up (e.g. the much criticised British Mammal Society Survey).

Point Año Nuevo is used by thousands of breeding seabirds and marine mammals and supports a world famous elephant seal haul out and breeding ground.

Preferred habitat: Coastal woods, swamps, boggy streams + + + + Foliage / winter appearance: almost evergreen + + + + Soil conditions: loam, clay, tolerates poor drainage + + + + Light conditions: dappled shade to full sun + + + + Plant spacing: 20 feet + + + + Wildlife value: leaves favored by deer; berry - like seeds eaten by many bird species and small mammals; leaves are used in bird nest building

The White Moth All Over fabric by Timorous Beasties shows off the intricate pattern of moth wings, while the company's latest wallpaper release, Pangolin, features a scalloped design that imitates the scales of the anteater - like mammal using a watery, iridescent finish.