10 most difficult sea animals riddlesAnimals quiz
Which turtles are the biggest?
aldabra giant tortoise
The leatherback sea turtle, the only extant member of the family Dermochelyidae, is the largest of all living turtles and is the fourth largest modern reptile behind three crocodilians. In the Caribbean, the mean size of adults was reported at 384 kg (850 lb) in weight. The largest ever found weighed 916 kilograms (2,020 lb).
What is special about Synalpheus Pinkfloydi shrimp?
hunting with sound
characteristic breeding dance
The shrimp, called also Pink Floyd pistol shrimp, may be found in Pacific waters at Panama coast. The sound of its snapping claw shut reaches 210 decibels (while whales achieve 188 decibels), and can kill passing nearby small fish. It is probably the loadest sound an animal creates.
Which sea turtles are the deepest divers?
Leatherback turtles are one of the deepest diving marine animals. Individuals have been recorded diving to depths as great as 1,280 meters (4,200 ft). Such depths are unreachable for turtles with hard shells, as these would have been crushed by the pressure.
What is the top speed of the sailfish, considered to be the fastest fish in the world?
up to 50 mph
up to 70 mph
up to 90 mph
well over 100 mph
Clocked at speeds in excess of 68 mph, some experts consider the sailfish the fastest fish in the world. Easily recognized, sailfish are named for the spectacular sail-like dorsal fin that extends for nearly the entire length of their silver-blue body. Additionally, the sailfish's upper jaw is far longer than its lower jaw, forming a distinctive bill that looks like—and sometimes acts like—a spear.
What is the inventive hunting technique of humpback whales?
A group of whales swims in a shrinking circle blowing bubbles below a school of prey. Forage fish show a strong fear of bubbles and can be easily contained within a bubble curtain. The shrinking ring of bubbles encircles the school and confines it in an ever-smaller cylinder. The whales, then suddenly swim upward through the "net", mouths agape, swallowing thousands of fish in one gulp.
What kind of lobster is red when fully grown up?
Norway lobster (scampi)
The normal coloration of lobster is dark bluish green to greenish brown, redder on the body and claws, and greener on the legs. An estimated one in 2 million lobsters are blue. All of them turn red after cooking.
What does swordfish use its sword for?
Swordfish charge at high speeds through forage fish schools, slashing with their swords to kill or stun prey (contrary to the popular belief, they do not "spear"). They then turn and return to consume their catch.
What is narwhal 'horn' really made of?
it is a horn grown on its forehead
it is an adapted scale
it is a canine tooth
it is an adapted nose bone
Usually, males have a single long tusk, the canine on the left side of the upper jaw that projects through the lip and forms a left-handed helix. The tusk grows throughout life, reaching length of 3 m (10 ft). In some rare cases, both canines grow equally long, forming two tusks. In the Middle Ages, narwhal tusks were sold as unicorn horns.
Why is this seahorse male so thick?
it is pregnant
it has swallowed an octopus
it is changing skin
it holds some air inside
Seahorse males deliver the babies. After mating, the fertilized eggs are embedded in the pouch wall and become surrounded by a spongy tissue. The male provides oxygen and supplies the eggs with prolactin, the same hormone responsible for milk production in pregnant mammals.