That is, they cannot survive without meat in their diet. Young tadpoles start as omnivores, then become carnivores once they reach the adult stage.
They do this by slowing down their breathing and camouflaging as a defense mechanism to hide from predators or seem less appealing to them. Predators look for movement and if a frog looks dead or immobile, a predator has fewer chances of attacking.
A frog scream may sound funny but it can be an effective way for them to surprise a predator and deter it from attacking.
A frog will pee if it is afraid and wants to escape. They do not like to be picked up as they absorb practically everything through their skin and salts, oils, soil, and lotions from our hands can irritate them.
Trust me. I've tried.
facts were taken from here.