1. INVERTEBRATES

2. Types of invertebrates

3. Types of invertebrates Molluscs Arthropods Worms Porifera Echinoderms

4. OCTOPUS Whatkind of animal istheoctopus? Characteristics.

5. Invertebrate Acuaticmollusc Cephalopod Itdoesn’thave a skeletonor spines It’soviparous

6. Cephalopodmeans «head foot»

7. The inside organs of the octopus are protected by a mantle, which consists of a thick covering of skin and muscle. Octopuses use their mantle to swim. They tighten all the mantle muscles at once, throwing a blast of water from a tube called the siphon, causing the octopus to launch forward.

8. VIDEO: Parts of theoctopus Payattention!

9. Parts of theoctopus

10. Howsmall do youthinkanoctopus can be?

11. It can be smallerthan a tennisball!

12. What do theyeat? Octopuses eat many different kinds of sea creatures. They like oysters and clams. They use their suckers to pull the shells apart and get the food inside. They also like lobsters and crabs. Octopuses have a sharp beak. They use it to break an animal's shell. Then it kills the animal with poison that the octopus makes in its mouth.

13. Octopuseshave a BEAK:

14. Oysters Clams

15. Crabs Lobsters

16. Where do octopuseslive? They live in the ocean, especially in coral reefs. Octopuses are characterized by their eight arms, usually with sucker cups on them. They are highly intelligent, but have a very short life.

17. A very famous octopus died a few months ago. Who knows what his name was?

18. OCTOPUS PAUL

19. VIDEO: TheMimicOctopus

20. VIDEO: TheMimicOctopus Themimicoctopus can transforminto 15 differentspecies. We can seethree in the video, can yourememberwhich?

21. Reproduction The octopus mother lays thousands of eggs. She guards them for weeks. When the baby octopuses are born, the eggs burst open and the tiny octopuses swim out. The mother octopus will die soon after her eggs hatch. She will never see her babies again. Many babies will be eaten by fish, birds or other creatures. The male's penis is in the third tentacle. They lose the tentacle after mating. But after some time it will grow a new arm.

22. Howmany times does a femaleoctopus reproduce? Whydoesshekeepcarressingthem? VIDEO: MotherOctopus

23. Defendingthemselves Octopuses face many dangers in the sea, but they have ways of protecting themselves: Camouflage - They have special coloring to help them camouflage in their surroundings. Hiding - The octopus can change colors which can confuse their enemies. They can also hide in holes in the rocks. Ink cloud - The octopus squirts a dark, inky liquid into the water and then swims away to safety.

24. Didyouknow...? An octopus can survive long periods of time eating it’s own tentacles. If the animal finds food, can regenerate again.

25. Didyouknow…? Thepupils of anoctopus are quadrangular.

26. VIDEO: Octopus vs Shark Whowillwin?

27. TheEnd