Sentences with phrase «on predators and their prey»

Part of the Explore series, this title focuses on predators and their prey, encompassing everything from mammals to insects to plants.

Not exact matches

This may seem like some useless information when an ocean's worth of water is pushing in on them from every side, but sharks use this ability to figure out where other fish, both predators and prey, are.

In an interview on CNN's «Reliable Sources» on Sunday, former Fox News personality Tamara Holder, who settled with Fox News after an executive allegedly tried to force her to perform oral sex on him, said Murdoch and Fox News «allowed abusive predators to prey on women who just wanted to work.»

That did not happen: there is no geological record of a world - wide flood, there is not enough diversity to regenerate the population we currently, there is not enough water to cover the earth to the height of Everest, the logistics of retrieving and returning animals to the then - unknown Americas, Australia, etc. were staggeringly difficult, managing the animals on the Ark was impossible — a few humans keeping predators from their prey, cleaning the waste, etc., pretty much all life on earth would have been killed, etc. etc..

Much of the history of biological life is built on opportunism; and, as evidenced in predator - prey relations, this opportunism is cruel, at least from the point of view of the victims.

Shatter said in a statement through a spokesman last week that priests» failure to report what they learn in confession «that has led sexual predators into believing that they have impunity and facilitated pedophiles preying on children and destroying their lives.»

Otters, being predators, rely on their teeth to capture and masticate their prey.

Ballack knows how to get into Mesuts head, speak highly and have expectations for a huge game, and Mesut will blend in with the background, I think he's a predator, preys on the weak.

On Jan. 26 from 5 - 6 p.m. at Crowder County Park in Apex, learn about predator - prey relationships, the food chain, skulls and teeth of mammals, and play some games to test your senses.

Putting numbers on the athletic powers of wild predators and prey «enables you to understand the ecosystem» Wilson says.

However, if, as we showed, the scent is sufficient to continue population decline, then even if the predators move on to other prey, and their scent disappears, this is unimportant for the survival of the population that is at risk whose numbers and reproductive ability have been critically affected by the passing smell of death.»

«Ants stomp, termites tiptoe: Predator detection by a cryptic prey: Learning how termites extract and synthesize a specific sound / vibration signal amidst a cacophony of other sounds could lead to advances in technologies based on acoustic signatures.»

That artistic gap may be due to differences in the way they hunted, suggests a University of California, Davis, expert on predator - prey relations and their impacts on the evolution of behavior.

«But the smaller size of coyotes appears to give them dietary flexibility to survive on a wider variety of food and prey sizes, making them less predictable predators of large prey.

Whereas adult great white sharks and other predators can rely on sharp teeth and powerful jaws to help dismantle large prey, juveniles may not pack enough bite to pull apart victims too big to swallow whole.

For one, it was an older snake, and aged individuals tend to save their venom for prey rather than wasting it on predators that are too big to eat.

The models included interactions and competition between predators as well as the influence of climate on vegetation and prey populations.

Because large carnivores regulate other predators and prey, exercising an influence on the ecosystem far out of proportion to their numbers, their protection and reintroduction is crucial.

Richard Coss, a psychology professor and expert on the evolution of predator — prey relationships at the University of California, Davis, studied the behavior of 185 people who were attacked by mountain lions (aka pumas or cougars) between 1890 and 2000 in the U.S. and Canada.

With an estimated 1 million animals killed every day on America's road network, the effect of this constant removal of predators and prey is felt over much wider areas.

These bottom - dwellers lie on their sides, hidden from predators and ready to grab passing prey.

Rolf O. Peterson (1944 ---RRB- Peterson helms the world's longest - running study of the predator - prey relationship in the wild, between wolves and moose on Isle Royale in the middle of Lake Superior.

Predator Friendly, a company in Big Timber, Montana, was created to help market wool from ranches that do not kill the coyotes, mountain lions and bears that prey on sheep and lambs.

Each strain of phage is highly targeted and has evolved to home in on specific bacteria, which means a precise match between prey and predator is necessary for any phage - based treatment to be effective.

So I wondered if some animals need to spend time and energy on voluntary exercise so that they are fit enough to out - run predators, win over mates or hunt down prey,» he explains.

Rochet has run theoretical models on the effects of fishing practices and has indeed found that selective fishing can negatively impact biodiversity and create ripples in the food web as the balance between predator and prey is upset.

These large frogs hide among the leaf litter on the rainforest floor, making it harder for predators to spot them and easier to snag unsuspecting passing prey such as spiders and lizards.

Most research on color and behavior in toxic amphibians has focused on interactions between individuals of the same species or between predators and prey.

If the venoms don't evolve quickly enough, then the predators or prey on which they're intended to act will evolve a countermeasure and render the toxic advantage moot.

Prey needs to hide from predators, and predators need to sneak up on pPrey needs to hide from predators, and predators need to sneak up on preyprey.

«We imagined that the food resource on the landscape could have a couple different effects on relationships between nest predators and their prey.»

And then, using data collected by other scientists on three predator - prey pairs — mink - muskrat, gyrfalcon - rock ptarmigan and phage - Vibrio cholerae — they show how their theory could explain unexpected population cyclAnd then, using data collected by other scientists on three predator - prey pairs — mink - muskrat, gyrfalcon - rock ptarmigan and phage - Vibrio cholerae — they show how their theory could explain unexpected population cycland phage - Vibrio cholerae — they show how their theory could explain unexpected population cycles.

The wasps do not have their natural predators, and Spurr believes they may be upsetting the ecological balance by preying on native insects and young birds, and by competing for food.

But instead of traipsing into the woods to find animals that prey on lizards, he and his colleague turned to another kind of predator: graduate students.

Circular pupils are generally found on animals that chase down their prey, such as cheetahs, or on taller ambush predators like lions and tigers.

«I think there's good evidence in nature that there is an arms race going on that generally exists between predators and prey,» says Carroll.

They feed on the bottom of the food chain — on single - celled plankton, which larger fish can not eat — and then they become prey for all sorts of upper - level predators like tuna, sea bass and halibut as well as seabirds and marine mammals.

Birds play an important role in a wide variety of ecosystems as both predator and prey, in controlling insect populations, pollinating and seed dispersal for many plants, and in releasing nutrients on to land and sea in the form of guano.

Of the 42 known predators of puff adders, 15, including dogs and meerkats, rely primarily on their keen sense of smell to locate their prey.

This African viper species, Bitis arietans, relies on stealth, both to find its prey and to hide from their predators.

Furthermore, only recently have researchers been able to consider both the ecological relationships among krill predators (e.g., niche overlap) and the potential effects of climate change on those relationships, specifically as they relate to the availability of their krill prey [14].

Modern birds use their feet in order to interact with their environment in numerous and complex ways — relying on them for locomotion, prey capture, grooming, perching, nesting, and even fighting among themselves or for defense from predators or competing species.

In addition, ocean acidification impacts on competitive interactions and predator - prey relationships will be a focus of the upcoming work.

His research seeks to understand the forms of coevolutionary selection created by interactions between species - plants and pollinators, hosts and parasites, predators and prey - and the importance of this selection over the evolutionary history of life on Earth.

Sarah Ann participates in studies of climate effects on top predators, climate variability in the California Current, and predator - prey relationships in the Bering Sea and Gulf of Alaska.

Julie has conducted research on a variety of top marine predators and their prey in relation to ocean climate.

This study examined the independent and combined effects of short - term exposure to elevated CO2 and boat noise on the predator — prey interactions of a pair of common coral reef fishes (Pomacentrus wardi and its predator, Pseudochromis fuscus).

That is why no matter what on - line dating service you choose, you should beware them, not to fall a prey of these on - line «predators», who make money on the cost of broken hearts, great expectations and empty wallets.

ABC NEWS — Aug 23 — A growing number of sexual predators and pedophiles are taking advantage of online anonymity and dating sites to prey on single mothers and their children.

With his full beard lined with gray and soft paunch, Donal may not look like much, but he's a resourceful chap, tough and able with wrench and gun, so soon he turns from prey to predator, very much turning the tables on his aggressors.