Check out the tiny new species of frogs discovered in the cloud forests of Brazil.
Brachycephalus mariaeterezae
Brachycephalus fuscolineatus
Brachycephalus verrucosus
Brachycephalus leopardus
Brachycephalus boticario
Brachycephalus olivaceus
Images from LiveScience.
Evolution in action.
Based on the similarities, I wonder if those cute yellow ones have a common ancestor with this:
http://en.wikipedia.org/wiki/Summer_squash
Let us not hope the keychain-sized snakes of the Grenadines don't find out !