• What glues its eggs to the roof of its cave?
  Female octopuses breed only once in their lifetime. After mating, the ...

• What fish swims a long way to breed?
  Young salmon hatch out and grow in shallow streams inland. After ...

• Which young fish eats its brothers and sisters?
  Sand tiger shark eggs hatch out inside their mother's body. The tiny ...

• How does the dugong protect its baby?
  Female dugongs give birth to a single calf, a year after mating. A ...

• Which is the friendliest sea creature?
  Dolphins are naturally playful and friendly to humans. They often ...

• How do humpback whales go courting?
  Humpback whales make many different sounds, including clicks, ...

• How do deep-sea creatures light up each others’ lives?
  In the darkness of the deep sea, many fish use light to attract a ...

• Which creature has a midwife at the birth?
  Pregnant dolphins give birth to a single baby up to a year after ...

• What makes a fiddler crab sexy?
  Male fiddler crabs have a built-in "sex symbol" - one claw that is ...

• How do octopuses show their feelings?
  Octopus and squid can change their skin color from brown to green, or ...