Who is David Gruber?
He's a marine biologist.
Sea animals can see colours in the water that humans cannot. TRUE OR FALSE
TRUE
Which sea animals can turn itself on or off, just like a lamp?
Vampire squid
Why do some sea animals produce patterns?
to recognise each other
VOCABULARY: It is the time of day when light first appears in the sky, just before the sun rises.
dawn
71% of Earth is ocean. TRUE OR FALSE
TRUE
90% of the animals that live at the bottom of the ocean produce their own light. TRUE OR FALSE
TRUE
Marine animals in the dark ocean produce lights to communicate with each other. TRUE OF FALSE
TRUE
