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  1. Animals

    Here’s why pumpkin toadlets are such clumsy jumpers

    Tiny Brachycephalus frogs from southern Brazil can leap into the air but have trouble landing.

    By Meghan Rosen
  2. Archaeology

    Ancient bacterial DNA hints Europe’s Black Death started in Central Asia

    Archaeological and genetic data pin the origins of Europe’s 1346–1353 bubonic plague to a bacterial strain found in graves in Asia from the 1330s.

    By Bruce Bower
  3. Animals

    Butterflies may lose their ‘tails’ like lizards

    Fragile, tail-like projections on some butterflies' wings may be a lifesaver.

    By Jake Buehler
  4. Life

    Lucy Cooke’s new book ‘Bitch’ busts myths about female animals

    Female animals get their due in Lucy Cooke’s exploration of the roles of the sexes in biology and evolution.