Why does a toads throats expand?

What do salamanders don't eat? Does an axolotl live in the amazon? How do frogs snakes and toads survive during winter? Where are the some of pictures of membranophones? How often will water snails lay eggs? What is the name of the saxophone player in the muppet show? I am 11 dpo and started having a light brown discharge on 9 dpo 3 days now with bad cramping on and off. AF not due for 4 days. What are the chances of implantation bleeding Thanks? Is the red eyed wolf real? Do snails eat their own babies? What does amitotic mean? What 3 bats feed on blood? What group of animals came before the amphibians? How and when do salamanders hunt? What are the stages of frog metamorphosis? Can an American green tree frog and an American toad create a hybrid? What do you do with toad eggs? What is ammonia dermatitis? What are adaptations of a glass frog? What structure produces eggs in female frogs? What if your doodoo is green?