1. E.T. Sponge (Advhena magnifica)
Discovered in 2016, the E.T. Sponge immediately drew attention for its uncanny resemblance to the famous alien from cinema. With a translucent, bulbous head perched atop a slender stalk, this sponge looks more like a visitor from another world than a sea creature. Its ghostly appearance and delicate structure have made it an icon among recent discoveries. For more details about this bizarre find, visit NOAA’s official site.