The document describes various marine animals including eels, cuttlefish, octopuses, crabs, needlefish, and sea urchins, highlighting their physical characteristics, habitats, diets, predators, and reproductive behaviors. Each species is summarized with key information such as life expectancy and defensive mechanisms. The document emphasizes the interconnectedness of aquatic life and their environments.

1. Healthy sea, healthy humans
Water animals

2. The Eel
• Its body looks a lot like this of
a snake and is very slippery
• It eats worms, insects, small
shrimps etc.
• It lives in rivers, lakes and the
sea.
• It can live around 18 years.
• In Greece you can find the
Anguilla anguilla species.

3. The cuttlefish
• Cuttlefish live in warm seas and in
sandy sea ground
• Cuttlefish eat small molluscs, crabs,
shrimp, fish, octopodes, worms, and
other cuttlefish.
• Their predators include dolphins,
sharks, fish, seals, seabirds, and
other cuttlefish.
• The average life expectancy of a
cuttlefish is about one to two years.
• Cuttlefish are able to rapidly
change the color of their skin to
match their surroundings. They also
use their ink to protect themselves
from their enemies.
• They give birth to eggs.
• (by Marianna, Nikos, Tzaskirat)

4. The cuttlefish

5. The octopus
• They have two eyes and four
pairs of arms.
• In their center lays their mouth.
• They reproduce with eggs. The
female lays around 200.000
fertilizes eggs.
• They eat small fish, shrimps,
crabs and other molluscs.
• Its only enemy is human beings.
• Octopuses inhabit many
diverse regions of the ocean,
including coral reefs, pelagic
waters, and the ocean floor.
• They defending themselves
against predators by the
expulsion of ink, the use of
camouflage, their ability to jet
quickly through the water, and
their ability to hide.
(By Efraim, Aggelos, Charmadip)

6. The octopus

7. The crab
• They live in all the world's
oceans, in fresh water, and
on land.
• Are generally covered with a
thick exoskeleton and have
a single pair of claws.
• They move in a special way
going to their sides.
• They have 10 legs.
• They can eat everything and
they hide during day.
• The females lay millions of
eggs which resemble round
berries.
• (By Nefeli, Artemis, Thanasis)

8. The crab

9. The needlefish
(η ζαργάνα)
• Needlefish are long, thin
fish with a long and
narrow beak, which bears
multiple sharp teeth.
• Their length can reach
1meter.
• They lay their eggs
(around 1000) on flowing
items in the sea.
• Their enemy is mainly
fishermen.
• (By Jessy, Koralia, Dimitra)

10. The needlefish
(η ζαργάνα)

11. The sea urchin
(Ο αχινός)
• They live in clean seas, in
places with rocks or algae.
• They give birth to lots of
eggs.
• Sea urchins move slowly.
• They feed on mostly
algae.
• Sea otters, starfish,
woolfeels, triggerfish and
other predators hunt and
feed on sea urchins.
• (by Joanna and Rafaella)

12. The sea urchin
(Ο αχινός)