This is the largest animal in the world.
What is the blue whale?
This is the number of species categorized as toothed whales.
What is 71?
These animals live in the twilight zone during the day and move to the surface at night.
What are copepods and lantern fish?
This fish has a bulb above its head that produces blue light to lure prey.
What is the anglerfish?
In the ocean, these chimneys of super-heated water erupts through the ocean floor, carrying dissolved chemicals.
What are black smokers?
What is baleen?
Although you may not think of them as whales, these animals are categorized as "toothed whales."
What are dolphins?
This is how long the migration between twilight zone and surface takes.
What is up to 3 hours each way?
What are detritivores?
These organisms can change the chemicals from black smokers into sugars to power cells.
What are archaea?
This filter-feeding whale has an expandable throat that can hold and filter a lot of water.
What is a rorqual?
How toothed whales detect prey.
What is echolocation?
What are photophores?
The ocean floor is made of this.
What is soft mud and ooze consisting of dead plankton (open ocean), or sand and mud from erosion (near continents)?
What is blindness?
Bumps on the outer skin and snout of humpback whales.
What are tubercles?
This toothed whale has a unique spiral tusk protruding from its upper jaw.
What is a narwhal?
This type of fish has photophores on its belly so that when it is viewed by animals below it, it appears to blend in with the blue glow of surface water.
What are hatchetfish?
The natural predator of the giant squid.
What is the sperm whale?
The temperature of the water coming from the black smokers.
What is 662 deg. F (or 350 deg. C)?
This is the smallest baleen whale in the world, found in this region.
What is the pygmy right whale found in the Southern Ocean in summer, and Australia/ South Africa in winter?
These 4 animals are listed as food sources for toothed whales.
What are fish, squid, seals and other whales?
These are the four functions of bioluminescence in animals of the twilight zone.
What are attracting prey, confusing enemies, camouflage and communication?
These two scavengers can be found feeding on dead carcasses on the ocean floor.
What are chimaeras and re-tailed grenadier fish?
These animals are found in dense colonies around the black smokers,and they can grow up to 6 feet long.
What are giant tube worms?