Very often, these man-made devices unwittingly or deliberately exploit the same tricks evolved by animals.
If ingested by animals, they accumulate in body tissues, and are passed on up the food chain.
Researchers found that when Salmon died naturally in two Northern California rivers, the fish were eaten by animals.
Between 2003 and 2004, 620 postmen were attacked by animals in Wales.
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Buck's work has also widened to include pheromones: chemicals released by animals that act on members of the same species to stimulate responses like fear and aggression.
National data are scarce, but California reported at least 152 accidents from driver inattention caused by animals in the vehicle in 2010, according to the state's Highway Patrol, leading to 58 injuries.
The problem that confronted Dr Whiten and Dr Boesch was how to disentangle which of chimpanzees' many behaviour patterns are genetically instinctive, which are learnt by individuals in isolation (and so are not cultural, because not copied from others) and which are culturally transmitted (by animals copying one another).
However feeding animals by-products of other animals can transmit dangerous diseases to humans, including bovine spongiform encephalopathy (mad cow disease) in cows.
Some are self-explanatory, such as the Commission for Compensation for Damage by Wild Animals.
They can also be swallowed by marine animals like whales and turtles, causing them to starve.
The results are consistent with the idea of pain being experienced by these animals.
Lulac lives in the bedroom of Rsners 9-year-old daughter now, but Rsner is still surrounded by stuffed animals.
Bioerosion: process by which animals, through drilling, grazing and burrowing, erode hard substances, for example rocks and coral reefs.
The land will be grazed by commercial animals, including Norfolk Horn sheep and Suffolk red poll cattle, who'll keep the vegetation in check.
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"The idea that you can produce the products that we produce -- that are a delicacy -- by mistreating animals is just completely, it's inconceivable, " Henley says.
The four kilometers on either side of the border are crisscrossed only by small animals, and the absence of any human activity creates a false sense of calm.
He's exploring the parks and wildlife refuges of the East Coast, learning more about the problems encountered by the animals and plants with which we share the planet.
The Court of Appeals reversed lower courts, which had applied the usual liability test for injuries by domestic animals, such as dogs or even aggressive bulls, based on their vicious tendencies.
Theories abound that male self-sacrifice may be a logical extension of the practice employed by many animals, including insects and spiders, of the male bringing a gift of food to encourage the female to mate.
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Bushnell's best-known accomplishments came at Atari, which helped launch the modern video game industry with the 1972 release of "Pong, " and at the Chuck E Cheese restaurant chain, which specializes in pizza, arcade entertainment and musical performances by animatronic animals.
As we watch the confrontation from safely inside the Land Rover, I realize what makes getting out of the car so special: Down on the ground, walking, where we'll spend the bulk of this safari, you have to earn what you see by following animals through the bush and approaching them gingerly so they don't bolt.
In the long run, though, it seems the train has reduced the pollution formerly caused by cars and trucks and reduced the number of animals killed by vehicles driving through the park.
Two years later they sent 15 animals by rail to the new Wichita Bison Refuge in Oklahoma.
The replacement of draft animals by machines released about 25% more land for growing food for human consumption.
Horton gets mightily abused by the other animals in the jungle, who think he's nuts and hearing voices.
Some start life by killing small animals, while others are not that obvious.
According to one estimate, the world will be using 50, 000 tons of antibiotics on people and animals by 2000.
"The basic objective is to understand what goes on in nature with animals by programming robots with similar behaviors, " she said.
The first phase is a piggery in Zhejiang Province due to start rearing animals by year-end (see box, p. 110) .
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