Golden Poison Frog

If the forests it resided in were to be cut down, the Golden Poison Frog would likely develop a stronger/more lethal poison, and adopt a slightly different color to stay alive. Golden poison frog, one of the most poisonous animals on the planet. If the forests it resided in were to be cut down, it would likely develop a stronger/more lethal poison, since it's main predator, the fire bellied snake, grew immune to it's poison , and adopt a slightly different color to stay alive. The "new frog" would have a bigger “sac” To contain more poison (and more lethal types since it's main predator grew immune to it's poison previously) while also turning a different color to blend in a bit more with the dead environment around it.