Phenotype:  8-9m long, 2-3m tall, 6-12 tons.

Time Range:  Late Cretaceous 

Interesting facts: Horns and frills used for display and combat, attracting mates, intimidating rivals and fighting predators.

Phenotype: 50mm long, black head, yellow and black abdomen, 6mm stinger.

Range: East Asia

Interesting Fact: Venom is lethal, even known to kill yaks. Kills 30-40 humans annually.

Phenotype: Black, brown, golden & red.  6 ft span. Elongated arms, legs & tail.

Range: Tropics of Mexico and South & Central America 

Interesting Facts: Screeches & barks to communicate; Females are dominant.

These shrimp host bacteria found near sulfide rich chimneys in their gills which they also eat. Vent Shrimp often gather in very large groups and can dominate hydrothermal vents. Although they lack eyes, Vent Shrimp have developed dorsal eye spots which may be used to sense thermal radiation.

Glass Sponge skeletons are made entirely of silica – making their bodies rigid. Although Glass Sponges can be found in oceans all over the world they are especially abundant in Antarctic seas. Sponges pass water through their bodies and feed on tiny particles. A Glass Sponge skeleton containing a pair of shrimp is often given as a wedding gift in Japan.

A top predator in the hydrothermal vent community. Eats almost anything including crabs, shrimp, and tubeworms.