How many teeth does a great white shark have at any given time?

How many hearts does an octopus have?

Which ocean creature has a heart that weighs as much as a car?

How long can a dolphin remember a whistled sound?

Which sea creature can change its DNA to camouflage itself?

What color is a lobster's blood?

Which sea creature is known as the 'immortal jellyfish' because it can reverse its aging process?

Which sea creature produces the loudest sound in the ocean?

What is the largest fish in the ocean?

What is the fastest fish in the ocean?

What is the average depth of the world's oceans?

Which sea creature has the largest eyes in the animal kingdom?

How far can a flying fish glide above the water?

How many brains does a starfish have?

What percentage of Earth's oxygen is produced by marine plants and algae?

What percentage of the ocean floor has been mapped in detail?

How many species of fish live in the ocean?

Which ocean creature can live for up to 500 years, making it one of the longest-living animals on Earth?

Which sea creature can produce light from chemical reactions in its body?

Which marine mammal has the longest recorded migration?