Nearly half of world’s migratory wildlife protected under UN treaty facing population decline, says new report

The interim report re-assessed status of migratory species which were covered under the landmark State of World’s Migratory Species report ...
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Paleontologists found a 40-foot hell heron with a sword-crested skull

A single, scimitar-shaped bone pulled from the Sahara’s sand can look like anything until enough pieces assemble into an animal the size of a school bus. Paleontologists excavating a distant fossil ...