Sentences with phrase «predatory species»

Um, if «interstellar travel» is «precluded», then how can there be any possibility of «intergalactic predatory species»?

As to a concerted effort to contact ET (or them to contact us), 1) it would still require a huge investment of energy that would be impractical for any civilization no matter how advanced, and 2) it might not be wise, given the possibility of intergalactic predatory species?

Ray Ladbury wrote: ``... distances (along with the theory of relativity) and radiation preclude interstellar travel... As to a concerted effort to contact ET (or them to contact us)... it might not be wise, given the possibility of intergalactic predatory species...»

Many contentious predatory species, like coyotes and wolves, believed to be most prone to attack livestock and game animals, have been targeted by the Wildlife Service for «selective» elimination (by steel - trap and aerial shooting).

Great white sharks, one of the ocean's greatly depleted predatory species, tend to cause a stir any time they show up near populated places, and that was certainly the case on eastern Cape Cod this weekend.

-- last week's post on signs of shifting attitudes toward predatory species in the sea and on land:

The most significant finding in the Nature paper is the identification of hot spots and corridors where a multitude of top - level predatory species congregate and migrate.

If any other predatory species reached the numbers we have or intend to reach, we'd be aerial spraying, shooting and hunting, poisoning and culling with no hesitation whatsoever.

Fishing with miles - long lines of baited hooks has spread around the world in the past few decades and has removed up to 90 percent of the large predatory species, including tunas, billfish and sharks, according to a variety of recent studies.

By removing starfish from research plots — literally throwing them out to sea on the rocky coast of Washington State — Bob showed how the presence of one predatory species, Pisaster ochraceus, could essentially dictate what the rocky intertidal looked like.

Whenever a population of birds, insects, rodents etc... becomes endangered, city officials always choose to make the feral cats the scapegoat, in spite of the fact that it is usually human encroachment, various predatory species other than cats, hunters, climate change, disease or various other non - cat related causes that are to blame.

Live Food If a store sells even a moderate selection of predatory species, it will be necessary to carry live feeder foods of various types.

Warn your customers that many predatory species of fish will eat regular and hermit crabs, while snails are rarely the object of predation.

Plenty of fish will turn over a starfish and eat it, but there are also predatory species of starfish that attack fish that live on the substrate.

Unfortunately, these mammals make suitable sized prey for many predatory species such as the feral cat and the introduced red fox.

I really like them as a food for any predatory species of fish — freshwater or marine.

Feeding sticks that float (at first) are excellent for predatory species to snatch from the water's surface.

Its best application is in a reef tank with predatory species.

Marine fish are extremely diverse, and you will always have a few customers looking for predatory species, especially sharks.

An example of a predatory species well known to most hobbyists is the chocolate chip star.

Koba warns that people are a violent, duplicitous, predatory species that should be fought if it can't be avoided.

Almost immediately, mutated flora captures Lena's attention, but it's an attack by one of the Shimmer's predatory species that pushes Lena toward one possible conclusion: Everything, flora and fauna, aren't just mutating into different shapes and species, but also exchanging DNA.

While scientists believed the creature was most likely a predatory species from the Jurassic period, they had a difficult time pinpointing its exact placement in the evolutionary tree.

Common Ravens are now the most pervasive predatory species nesting in this area, accounting for 46 percent of nests among these four avian predator species.

For example, among birds, predatory species such as owls and hawks have forward - pointing eyes.

The researchers specifically examined the role of grey reef sharks (Carcharhinus amblyrhynchos), a predatory species commonly associated with coral environments but whose wider ecological role has long been debated.

Where the shelf ends and the continental slope drops steeply downwards, waters at 1,500 - 2,000 meters teem with long - lived predatory species such as bluefin tuna, swordfish, marlin and wahoos, which probably all swam through the plume.

To better understand the potential role of acoustic signals in butterfly larvae integration and adoption by ant colonies, scientists compared two populations of parasitic butterflies: a predatory species that feeds on ant broods, and a cuckoo species that is fed directly by the worker ants.

Mink are an introduced and highly predatory species which represents the main threat to water voles and other native wildlife where the habitat is suitable.

Not exact matches

The human species should not apologize for its predatory role in the biotic pyramid.

Pike is a widely distributed, long - lived and large keystone predatory fish species that breeds annually after becoming mature.

Pyenson et al. report that the site, Cerro Ballena, dates to the Late Miocene period and consists of over 40 skeletons of marine vertebrates, including rorqual and sperm whales, seals, predatory fishes, and fascinating, now completely extinct, species such as walrus - whales and aquatic sloths.

Chilesaurus is a rare example of a species from the generally predatory theropod group that evolved into a plant - eater.

The scientists analyzed 15 predatory bird species living within the geographic ranges of periodical cicadas that could potentially feed on the insects, including red headed woodpeckers, blue jays and gray catbirds.

The researchers also found that lizards» resting site choices that heightened individual camouflage were more evident on islands with higher numbers of predatory bird species, suggesting that this behavioral defence is more likely to evolve in riskier environments.

Triassic Neopterygii primarily developed small species while the majority of the more basal ray - fins produced large predatory fish.

This is the story of one of the winners, a small, shell - crushing predatory fish called Fouldenia, which first appears in the fossil record a mere 11 million years after an extinction that wiped out more than 90 percent of the planet's vertebrate species.

An invading species that harbors parasites may have a bigger predatory impact on its new environment than invaders that are parasite - free.

Small ecosystems are more vulnerable to extinctions; their member species are fewer in number and have limited refuge, and so are at statistically greater risk of being eliminated by a single event, whether a hurricane or the introduction of a predatory snake.

A remarkable yet little - known species of octopus is once again exciting the cephalopod community with its surprisingly social behavior, unconventional mating and reproductive habits, unusual predatory behavior, and unique body patterns, most of which have never before been observed among octopuses.

Modified cameras that are sensitive to ultraviolet light were used to photograph the ladybirds, allowing the researchers to use special modelling and image analysis techniques to analyse how each species would appear to predatory birds, which have very different color vision to humans.

A new study from biologists at Rice University, the University of Notre Dame, Michigan State University, the University of Iowa and the University of Florida finds that ongoing evolutionary changes in one fruit fly species are having a domino effect on at least three species of predatory wasps.

The predatory worms have already helped drive several species of land snails to extinction in parts of the Pacific Islands.

In the new study, Becker's team observed the interactions between cleaner shrimp and various species of parasite - laden predatory fish in the wild.

To find out whether some honey bee species can alter these alarms depending on the type of predator, the scientists studied the Asian bees, which must deal with multiple types of predatory, hive - attacking hornets, including the world's largest hornet.

Researchers grew three flower species — borage (pictured above), common comfrey, and cornflower — that farmers use to attract predatory and parasitic insects, including wasps, flies, lady beetles, and lacewings.

Removing too many herbivorous and predatory fish species deprives coral reefs of critical ecosystem functions and the capacity to respond effectively to other disturbances.

A new species of a fossil pliosaur (large predatory marine reptile from the «age of dinosaur») has been found in Russia and profoundly change how we understand the evolution of the group, says an international team of scientists.

While invasive predatory freshwater fishes have caused devastating damage to native freshwater species, ref marine invasive fishes are relatively uncommon and their ecological effects are largely unknown.

These species facilitate the transfer of energy to higher trophic levels by consuming very small prey and then being eaten by larger, predatory fish and other marine animals.