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What Is Progeria? Progeria was first described in the nineteenth century. The mysterious disease is often thought of as premature aging. Children with progeria are normal for their first year of life, but then develop medical problems normally seen i
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You Gotta Have Hearts 你必须得有的心脏 When it comes to weird sea-creatures, octopus es are hard to beat. Theres the well-known ink-squirting defense system, the bird-like beak , and the eight tentacle s with their double rows of sucker s . W
英语听力文摘 English Digest
a butterfly with glowing eyes Believe it or not, Monteiro and her team insert ed a new gene into the butterflys genetic sequenceone taken from a jellyfish . No, I know you're fooling. Actually I'm not. This gene codes for a green florescent protein t
英语听力文摘 English Digest
Carnivorous Bees 蜜蜂也吃肉？ I guess you never heard of Trigona hypogea, a South American bee that not only collects meat from animal carcasses, but has more recently been discovered to have a taste for live prey as well. Scientists have seen
英语听力文摘 English Digest
Silkworm s and Skin Graft s Don: One of the neater things thats going on in biology is the genetic modification of species. By changing the instructions in their genes, we can make certain plants and animals produce things that are useful to humans.
英语听力文摘 English Digest
The Denatured Egg White 煮鸡蛋还有那么多学问哪?在煮鸡蛋过程，鸡蛋会发生哪些变化呢? 蛋白质变性（protein denaturation）是指蛋白质在某些物理和化学因素作用下其特定的空间构象被改变，从而导致
英语听力文摘 English Digest