Facts about amphibians

  • Some invertebrates, such as echinoderms, do not have heads

  • There are likely millions of invertebrates living in your house right now - dust mites and you can't see them

  • Some scorpion mothers protect their young by carrying them on their backs.

  • Centipedes are carnivores which eat insects and worms

  • The first invertebrates evolved a billion years ago

  • Most invertebrates undergo metamorphosis

  • Sponges are the simplest invertebrates

What are invertebrates?

Invertebrates are animals without a backbone or bony skeleton.

They range in size from microscopic mites and almost invisible flies to giant squid with soccer-ball-size eyes.

This is by far the largest group in the animal kingdom: 97 percent of all animals are invertebrates. So far, 1.25 million species have been described, most of which are insects, and there are millions more to be discovered. 

Insects in particular are successful because they are so adaptable. They are opportunistic eaters, feeding on plants, animals, and decaying organic material. They are able to survive in extreme environments, including very hot, dry habitats. And many can fly—either to escape predators or to find new sources of food, water, and shelter.

You can learn more about the invertebrates at the Jungle Zoo by clicking on the images below: