Short presentation about the most important groups of invertebrates for school kids.

1. Invertebrate
s

2. Invertebrates
 Invertebrates are animals without bones
 Some of them have a shell or thick skin,
but they don’t have a skeleton inside

3. Types of invertebrates
 There are a lot of species of invertebrate
animals (much more than vertebrates)
 Some of them have legs: they are
arthropodes
 Many others don’t have legs

4. Arthropodes






They are invertebrates with legs
They have a thick skin
Insects have got 6 legs
Arachnids have got 8 legs
Crustaceans have got 10 legs
Myriapodes have got a lot of legs

5. Insects
 They have got six legs
 Some have got wings, others haven’t.
 Ants, beetles, flies, butterflies, bees and
wasps are all insects, but there are many
more

6. Other arthropodes
 Arachnids (8 legs): spider and scorpion
 Crustaceans (10 legs): crab, lobster…
 Myriapods (lots of legs)

7. Molluscs
 Molluscs are invertebrates with no legs
 They have a shell in or outside their body

8. Other invertebrates
 There are many more invertebrates without
shell or legs
 Jellyfish, worms, sea horses, starfish and
sponges are other species of invertebrates