Four frogs sitting on the ground under leaves. One has eggs all over its rear.

It's #WorldFrogDay! DYK Males of the midwife frog species Alytes obstetricans carry fertilized eggs on their backs until they're ready to hatch. #SciArt by P.J. Smit, Boulenger's "The Tailless Batrachians of Europe" 1897 in #BHLib via #SmithsonianLibraries: www.biodiversitylibrary.org/page/36107857

An historic image of a Christmas Beetle (green carapace, red legs).

The best decorations are the wild kind: Australia's King Christmas Beetle (pictured here from the species' first scientific description, Donovan, 1805). #AussieXmasTree biodiversitylibrary.org/page/52221720 via
@biodivlibrary.bsky.social & #SmithsonianLibraries