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All Stories by Helen Bradshaw
Health & Medicine
Tadpoles exposed to a metabolism-disrupting herbicide had malformed intestines, providing clues to a human condition called intestinal malrotation.
The most comprehensive tally of how migrating animals are faring looks at more than 1,000 land and aquatic species and aims to find ways to protect them.
The 350-million-year-old tree, which was wider than it was tall thanks to a mop-top crown of 3-meter-long leaves, would look at home in a Dr. Seuss book.