Sentences with phrase «group of species»

The Red List is a group of species that Greenpeace thinks may come from unsustainable fisheries.

If we are to conserve the world's remaining shark populations, management schemes, fishery regulations and trade regimes must take into account the extraordinary life history of this fascinating group of species.

The first time that a group of species evolved under tree - living, came down from the trees to become bi-pedal stick - wielding gangster animals.........

(Yes, snakes as we know them today are a fairly recent group of species.

To get there in time, though, the humans need the help of the Elite to open the portal above Earth, thus we have the foundation of our story as a group of both species must venture forth and save... well, everybody.

Named for their unmistakable body shape, these rare creatures grow to over 3 metres, are cartilaginous, and belong to ray and shark group of species.

These should be assembled with a specific species or group of species in mind.

Tracking is a characteristic of our curriculum that gives students the option of focusing their studies in the latter part of the curriculum on a particular group of species to gain more in - depth training.

A group of species found in southern California experienced ancient hybridization dating to the Ice Age.

If you just look at our history of conflict and warfare and violence, it probably adds up to more than any other single species or group of species might have inflicted.

Alternatively, ecotropic viruses have tropism that is generally limited to a small group of species or cell types (like mice and rats), while amphotropic refers to a virus that can transduce a wide range of hosts.

«We have a diverse group of species present on the pumice in extremely high numbers, which means they are likely to succeed in colonizing a new environment,» Bryan said.

Hominins are a group of species that includes modern humans, Homo sapiens, and our closest evolutionary ancestors.

The research showed that diplonemids are a diverse group of species of many different shapes and sizes, and that they hunt both bacteria and larger algae.

Great apes, or hominids, are a group of species that includes gorillas, humans, chimpanzees and bonobos, among others.

«Until recently, studying species or a group of species required the difficult task of cultivating organisms before genome sequencing.

Triceratops, for example, belongs to a big group of species called ceratopsians, many of which had frills and horns in a dizzying variety of shapes and sizes.

For example, the scientists write that disturbed coral reefs can be replaced by a group of species dominated by algae.

Tree Eaters On The Loose Bark beetles, a group of species that includes the mountain pine beetle, western pine beetle, and pine engraver, have thrived in North American forests for at least 12,000 years.

Phyletic in the first place: every species (or group of species) formed a sort of shoot (or phylum) which was obliged to evolve «orthogenetically» (The word «orthogenesis» is here used in its widest sense: A prescribed orientation offsetting the effect of chance in the play of heredity.»)

«The case most frequently insisted on by paleontologists of the apparently sudden appearance of a whole group of species, is that of the teleostean fishes, low down in the Chalk period.»

Morals come from an evolved social construct, or set of rules established by society in order for a group of a species to work together in harmony for the greater good of the group and therefore the individual.

«I concluded that this great group had been suddenly developed at the commencement of the tertiary series This was a sore trouble to me, adding as I thought one more instance of the abrupt appearance of a great group of species.»

«The several difficulties here discussed, namely our not finding in the successive formations infinitely numerous transitional links between the many species which now exist or have existed; the sudden manner in which whole groups of species appear in our European formations; the almost entire absence, as at present known, of fossiliferous formations beneath the Silurian strata, are all undoubtedly of the gravest nature.»

What's more, the two areas of evidence (genetic and fossil, each relying on millions of data points) exhibit the same pattern of branching between specific groups of species.

The characteristics of the home or the home occupants were more important for predicting occurrence than were climatic or regional factors, suggesting that home arthropod distributions can not reliably be predicted from outdoor arthropod predictions but may represent groups of species that are well adapted to human environments.

All groups of both species showed improvement over the course of 10 to 12 trials, but the healthy participants consistently reached the target with a more economic route, the team reports on today in the Journal of Clinical Investigation.

Remarkably, the observed pattern showing longer life - spans when fewer predators are present emerges no matter how the analysis was done: at the species level, at a finer regional scale (groups of species within a certain area) or even when comparing entire bioregions.

We've started with discrete projects looking at specific species or groups of species, including microbes and, in a different experiment, insects.

To protect them effectively, systematists need to fill the huge gaps in our knowledge of most groups of species, the report said.

With this technique, known as sister - clade comparision, evolutionary scientists look at groups of species that have common ancestry and age, known as sister clades, comparing the number of species with a particular behavior to the number without.

Throughout the history of life, new groups of species have flourished at the expense of earlier ones and global biodiversity has varied dramatically over geologic time.

Findings from the study support a controversial theory proposed in the 1940s that the emergence of new body shapes in groups of species could result in a surge in their evolution.

Partitioning the data to account for possible differences in evolutionary rates among genes (SM4) did not result in a tree more similar to the TENT, but instead in a tree with increased support for monophyletic groupings of species with these broadly shared traits (fig.

Mutations accumulate gradually and can be used to measure the time that has passed since two groups of species diverged.

It grouped those beetles into families (the biological classification just above genera, which are groups of species) and then sorted them into bins of time that each lasted 25 million years.

By looking at the larger data sets, researchers working on this study could examine individual species and groups of species within a geographic region, the temperature range inhabited by each species or species group, and the impact of temperature changes over time.

Overall, the study found that the lights either encouraged or discouraged settlement in 39 % of the taxa, or groups of species, living on the panels by the end of the experiment period.

And that's part of my research is to try to — in addition to linking these plants from different continents — also looking at mixtures of different plants and saying well, ««Do these, you know, groups of species always show up together in conjunction and mixtures?

In the past few centuries, the rate of extinction for some groups of species has jumped by roughly a factor of a thousand.

Over time, two isolated groups of a species could each change in unique ways, eventually creating separate species.

Based on the degree of variation in this ribosome gene sequence, they estimate that the water contains 3,931 species or groups of species, the team reports today in the journal Nature.

December 21, 2011 «Head - first» diversity shown to drive vertebrate evolution The history of evolution is periodically marked by explosions in biodiversity, as groups of species try out a wide range of shapes and sizes.

A third and ever - increasing area of activity involves proposals to add large groups of species as endangered / threatened species under the Endangered Species Act (ESA).

Traditional campaigns to protect wildlife tend to be conducted species by species, focused on, say, pandas or gray wolves, or on specific hot spots like Madagascar or on groups of species like whales.

Not exact matches

In October, Musk outlined the SpaceX strategy for reaching Mars and even his goal of settling large groups of people on the planet as part of his vision of making humans into a «multiplanetary species.»

Sept. 26, 2012: A coalition of conservation groups files suit in Federal Court to force Ottawa to protect endangered and threatened species along the route of the proposed pipeline, including Pacific humpback whales.

Transitional fossils can occur between groups of any taxonomic level, such as between species, between orders, etc..

Contraception is a personal choice and from a purely survival of species perspective, take a look at who practices contraception and which groups do not.

Or if you need to link love to something else, how about something plausible: Love is the emotional idealization of the mutual care that members of social species feel for other members of their in group and, as such, is the product of natural selection.