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- 1From:The Economist (Vol. 427, Issue 9095)Creatures from the black lagoon The Cambrian explosion was caused by a lack of oxygen, not an abundance DURING the Cambrian period, which began 541m years ago, animal life took a remarkable leap forward. The first...
- 2From:Popular Science (Vol. 249, Issue 2)By all accounts, early evolution progressed at a stately pace. It took maybe a billion years for single-celled life to appear after Earth formed, and another two billion years, scientists thought, before more complex,...
- 3From:Women's Health WeeklyA new study, 'Meig1 deficiency causes a severe defect in mouse spermatogenesis,' is now available. According to a study from Israel, "Meig1 is a mouse gene, abundantly expressed in the testis. It encodes two alternative...
- 4From:Science World (Vol. 52, Issue 11)A new species known as Symbion pandora lives on the lips of lobsters. The animal eats the leftover food from the lobster's lips. It reproduces either by mating or by forming buds that separate and become new living...
- 5From:Science News (Vol. 149, Issue 5)Research suggests that a huge genetic expansion within the amphioxus may have led to developmental changes that produced vertebrates. Jordi Garcia-Fernandez Holland and his colleagues propose that a amphioxus-like animal...