Echidna

San Diego Zoo's Animal Bytes: Echidna (New Window)
Fact sheet about the echidna. Contains a video of the animal as well.

Answers.com: Dictionary Definition of Echidna  (New Window)
A paragraph about the hydrax, (procavia capensis)

Enchanted Learning: Echidna (New Window)
A short fact sheet about the echidna with a drawing pointing out its body features..