There are approximately 150 species of amphibians in Costa Rica. Most amphibians begin their life as some type of water breathing animal (i.e. tadpole) and transform into an air breathing adult form (i.e. frog).
This picture is actually from the Neo Fauna serptarium north of Jaco Beach. They had a huge collection of snakes, lizards, frogs, toads, and butterflies along with a very knowledgable guide.
Cane toad (Bufo marinus) - These guys are huge, the tadpoles are poisonous to most animals and the adults have a poison gland to deter predators from eating them. Many considered them a pest but we had tons of them and they were very welcome as they ate all the insects we did not want around. (photo from animalpicturesarchive.com)
Poison Dart Frogs – we have several species of poison dart frogs living in Santa Rosa. They are diurnal not nocturnal, and many are critically endangered. I did not realize until I saw this, that many lay their eggs in bromeliad plants. Once the eggs hatch into tadpoles, the tadpoles climb onto the parents back and are transported to water.
Dyeing dart frog (Dendrobates tinctorius) - there are several species living in the wild in the Santa Rosa mountains. (photo from animalpicturesarchives.com)
Fifty animals are needed to make a fur coat, but one animal is content with its own fur.