A bumpy snailfish, Andean mouse opossum and ancient sea cow were just some of the many species described in 2025.

But the lion’s mane jelly isn’t just a certified Long Boi; according to Guinness World Records, it’s also the heaviest ...

Whew. 2025 is coming to a close, 12 months after it started. But was it just us, or did this particular lap around the sun ...