https://www.smithsonianmag.com/rss/tag/sex/RSS feed for SexenFri, 21 Aug 2026 14:00:00 +0000https://www.smithsonianmag.com/smart-news/an-extremely-rare-half-male-half-female-bird-temporarily-took-up-residence-outside-of-chicago-180989377/The unusual-looking bobolink is what's called a bilateral gynandromorph. The bird behaved like a male, eventually wooing a mate and raising fledglingsFri, 21 Aug 2026 14:00:00 +0000https://www.smithsonianmag.com/smart-news/an-extremely-rare-half-male-half-female-bird-temporarily-took-up-residence-outside-of-chicago-180989377/https://www.smithsonianmag.com/science-nature/marine-biologists-solved-a-wildlife-mystery-from-the-walkway-of-the-golden-gate-bridge-how-the-harbor-porpoise-mates-180989163/The dolphin-like marine mammals returned to San Francisco Bay in 2008 after a decades-long absence from the area. Scientists took the rare opportunity to closely observe their behavior, and what they uncovered might help at-risk porpoise populationsFri, 14 Aug 2026 13:00:00 +0000https://www.smithsonianmag.com/science-nature/marine-biologists-solved-a-wildlife-mystery-from-the-walkway-of-the-golden-gate-bridge-how-the-harbor-porpoise-mates-180989163/https://www.smithsonianmag.com/smart-news/koalas-are-at-risk-of-extinction-in-some-parts-of-australia-can-freezing-their-sperm-and-eggs-help-save-the-iconic-marsupials-180989147/Scientists are preserving the animals' reproductive cells in liquid nitrogen in a bid to boost genetic diversity in future populationsMon, 20 Jul 2026 15:00:00 +0000https://www.smithsonianmag.com/smart-news/koalas-are-at-risk-of-extinction-in-some-parts-of-australia-can-freezing-their-sperm-and-eggs-help-save-the-iconic-marsupials-180989147/