A woman throws fallen leaves and jumps while posing for a photo at the Bauman garden in Moscow, Russia, Tuesday, October 14, 2025. (Photo by Pavel Bednyakov/AP Photo)
Glaucus atlanticus (common names sea swallow, blue glaucus, blue sea slug and blue ocean slug) is a species of small-sized blue sea slug, a pelagic aeolid nudibranch, a marine gastropod mollusk in the family Glaucidae. This is the only species in the genus Glaucus, but is closely related to Glaucilla marginata, which sometimes is included in Glaucus.
A Papuanese tribal man poses for a photograph during the Baliem Valley Festival on August 9, 2010 in Wamena, Indonesia. The Dani, Yali and Lani tribes gather at this annual festival each dressed in distinctive tribal attire, stage mock battles, perform traditional music and dance, and celebrate with a pig feast. (Photo by Ulet Ifansasti/Getty Images)
A close up of a Khon mask July 8, 2011 in Angthong, Thailand. The paper mache Khon masks, are part of the ornate glittering costumes used in the stylized classical Thai dance form known as Khon. (Photo by Paula Bronstein/Getty Images)