It's often transmitted by fleas that carry it from prairie dogs or other rodents.
In 1996 it lost 7% of its rodents after viral infections contaminated some of its colonies.
The socks and underpants scattered on the floor resembled the skins of rodents recently consumed.
It wasn't the rodents, 80% of the sample population, that drew the hook into Huntingdon.
Earlier entrants from Merck and Ranbaxy were scrapped because they caused cancer in rodents.
Many rats first liberated the other, after which both rodents happily shared the treat.
Rodents can get in the feed, and their feces can transmit bacteria to the birds.
Lincolnshire has seen a surge in rodents spotted near people's homes according to a pest controller.
The sort of behaviour shown by rodents is, if anything, an increase in novelty-seeking.
Rodents, such as rabbit-size agoutis, carry away seeds and bury them, creating caches of stored food.
They feed on rodents and often conceal themselves in enclosed space to ambush their prey.
Without a groundswell of rodents, fears of bubonic plague should be set aside, or never feared at all.
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Unlike Dr Anderson's method, however, the Strathclyde contraceptive has not yet been tested on people, only on rodents.
The wolves also hunt coyotes, meaning the growing bald eagle and hawk populations have more rodents to eat.
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Henry (Hank) Foster, a veterinarian, founded Charles River in 1947 to provide rodents to drug companies and academic labs.
Skinner, inventor of the Skinner box, which can include an electrified floor to shock rodents and condition them.
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The dancing rodents shock the stuff shirts in an 18th century opera house and show them how to party.
Roughly 85% involved rats, mice and other rodents, and only around 3% dogs, cats, monkeys and other large mammals.
Some of the rodents will be tracked to learn more about their behaviour, before a control programme is introduced.
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Experiments on rodents and primates have shown that NGF can reverse memory loss.
Many scientists believe that the biological mechanism by which phthalates cause illnesses in rodents does not operate in humans.
Ministers say that the tests (84% of them on rodents) are tightly regulated.
The FDA delays a promising set of drugs due to side effects in rodents that may not apply to humans.
The rodents he saw scurrying around the ruined buildings were to inspire his first work, according to a fan website.
These tiny, blind, hairless subterranean rodents live in social colonies of 100-300 animals in the harsh, semi-arid conditions of Africa.
His device has worked in rodents and monkeys so far, and it is now being tested more extensively in monkeys.
Each cage held up to five of the little rodents, and even four months later, nobody knows exactly how many perished.
Romney was roundly mocked in that race for claiming to be a lifelong hunter of "small varmints" like rabbits and rodents.
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Alberta's battle with rodents began around 1950, when Norway rats, the most common breed, began migrating into the province in large numbers.
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Both floods, which encourage the growth of fungi, and droughts, which promote whiteflies, locusts and rodents, have an impact on agricultural production.
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