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(61) These two lizards use their venom to kill their prey, which comprises small mammals such as mice and birds.

(62) The tests can often be more effective than more expensive and time-consuming tests on mice and other animals.

(63) Coyotes hunt in packs when their food is deer but hunt alone when their food is mice.

(64) The severed heads of gulls, rabbits, crows, mice, owls, moles and small lizards looked down on me.

(65) If it is stored for too long in rick or barn, rats and mice can cause heavy losses.

(66) The few remaining hermaphroditic mice are at a premium because only they can produce the sperm that the all-female mice still need.

(66) Wish you can benefit from our online sentence dictionary and make progress every day!

(67) But when the researchers analyzed the brains of the dead mice, they found that fewer than half harbored prions.

(68) Yet these embryos were precisely the kind that Illmensee and Hoppe said had sometimes survived to become adult mice.

(69) Mice can develop the full range of brain problems associated with the disease without any sign of the prions, they found.

(70) The little mice ... took notice of the pattern of that wonderful coat.

(71) And in 60 percent of mice in which human tumors were implanted, the virus completely destroyed the tumors.

(72) Mice entered aircraft in pursuit of sandwich crumbs, usually under the floorboards.

(73) The mice showed symptoms of poisoning by the Alexandrium toxins produced by phytoplankton, but comparisons with known Alexandrium toxins proved negative.

(74) When some mice found the garret, the fir tree was happy for the company.

(75) In other mice in which colonies of normal human cells were grafted, the virus had little or no effect.

(76) Meanwhile, the larger birds of prey were tucking into things like mice, rats, chicks and rabbits.

(77) Tarsiers feed mainly on insects and their larvae but can catch small lizards, fledgling birds, spiders and forest mice.

(78) Chain and Heatley injected streptococci into mice and then treated some of the mice with penicillin.

(79) Some of the most interesting evidence to support this idea comes from studies on those alcohol-preferring mice discovered in the 1950s.

(80) Considering the size of their natural prey - small mice and birds - this is not so surprising.

(81) Normal mice, too, slimmed down to utter sleekness when they had a little leptin.

(82) In mice, however, the first polar body may sometimes divide.

(83) It's believed the protests were against the breeding of rats and mice for experiments.

(84) They announced yesterday that their treatment also eliminates the genetic defect in laboratory mice, bred with cystic fibrosis.

(85) Suddenly there was a run on, and mice were going faster than nachos and salsa.

(86) Moreover, it was not harmful when it was injected into mice.

(87) It has been accidently transferred from animals to man and has been experimentally transmitted from man to calves and mice.

(88) Tribromoethanol has been reported to be irritant to the viscera of mice and this can cause intestinal problems and death.

(89) Mice had found shelter in the kitchen, and spiders spun their webs unmolested.

(90) Heatley stayed until 3.30 a.m., when all of the untreated mice had died.