There is a wide range of wildlife in Tenerife, from reptiles, birds and Fish. All over the island you can find wildlife, where we stayed on our last visit you can see we had some visitors, this was one of many lizards which lived next to our pool. In the evening you will see geckos all around some of the resorts these are harmless reptiles which walk up walls without falling off!
There are some amazing birds all over the islands, everywhere you go you can see birds. I am no bird watcher so although I know there where loads of birds I do not know how exciting they are :).
In the sea when we where snorkelling there was a wide range of Fish small to large as well as schools of fish which you where able to swim though.
