1. Crustaceans Octavio’s Book Crustaceans

2. Crustaceans are Invertebrates (no backbones)

3. The lobsters and crabs are crustaceans

5. Their body is encased in a stiff shell that …

6. … must be shed to allow the animal to grow

7. The shrimps and barnacles are crustaceans

9. A crustaceans body is made of 3 parts: head, thorax and abdomen

10. although, the head and thorax may fuse

12. Only crustaceans have two pairs of antenna in the head

13. The krill and horseshoe crab are crustaceans

15. Most crustaceans are aquatic

16. ..but some have adapted to terrestrial life

17. The hermit crab and woodlice are terrestrial crustaceans

19. Few crustaceans are parasites and live attached to their host

20. The sea lice and whale lice are crustaceans

22. Species of crustaceans can look very different one of the other

23. but all have the basic larval form known as nauplius

25. Some crustaceans are an important ingredient

26. in the culinary tradition of many countries

28. The science that study the crustaceans is the carcinology

29. Other interesting crustaceans are the cleaner shrimps

31. There exists more than 55,000 species of crustaceans