Burgessomedusa phasmiformis had a cuboidal umbrella up to 20 cm (8 inches) high and over 90 short, finger-like tentacles.
Artistic reconstruction of a...
Halteria, a genus of microscopic planktonic ciliates that are found in many freshwater environments, can eat huge numbers of infectious chloroviruses —...
A fossilized squid-like cephalopod holds crustacean remains in its arm crown and, in turn, represents the remains of the meal of a predatory shark, according...