Sand tiger sharks can grow up to 20 feet (6.1 meters) long, with an average length of 12 feet (3.7 meters). They can weigh up to 600 pounds (272.2 kilograms), but weigh around 240 pounds (108.9 ...

Brown banded bamboo sharks are labeled as Near Threatened on the International Union for Conservation of Nature's Red List of Threatened Species. Living in shallow tide pools, brown banded bamboo ...

These jellies can sense light, smell and touch through their triangular tentacles. Throughout the Indian Ocean and Indo-west Pacific region, spotted lagoon sea jellies can be found free-floating in ...

The oldest reported age of a midnight parrotfish is 31 years. Midnight parrotfish are brighter blue as juveniles and shift to darker hues as adults. Like other parrotfish species, midnight parrotfish ...

Napoleon wrasses grow to two feet (24 inches) long, on average. Mollusks, sea urchins, crustaceans like shrimp and crab, boxfishes, sea hares, starfish and eels are all on the menu for Napoleon ...

The map puffer can be found in or near tropical and subtropical coral reef environments and lagoon ecosystems. They're distributed from Indian Ocean to the Pacific Ocean. Map puffers have a ...

Sponges are the main item on the menu for Bermuda blue angelfish, but they'll also eat corals, algae and parasites on other fish if available. As young, blue angelfish like to live in bays, shallow ...

These jellyfish have stinging cells in their tentacles that they use to stun their prey and defend themselves from predators. In the Pacific, Indian and Atlantic Ocean, thimble jellies can live at ...

GPOs have special skin cells called chromatophores that help them change colors to blend in with their surrounding environment. GPOs live in water as deep as 4,900 feet (1,500 meters), and ...

Female mosquitofish are larger than their male counterparts, growing up to 2.4 inches (6.1 centimeters) long. Males usually reach 1.4 inches (3.6 centimeters) in length. These freshwater fish can be ...

Male banded tulip snails will squirt water to create vibrations in the water to attract females. These snails have marbled shells with purple-brown spiral bands. They prey on other invertebrates and ...

As one of the largest crabs on the Pacific coast, Puget Sound king crab shells can grow over 12 inches (30 centimeters). Puget Sound king crabs are often found in rocky and muddy seabeds in the cold, ...