As many frogs as we hear about dying out or becoming endangered, we often forget that there are some species of frogs that are so productive that they in less danger of being wiped out. Wood frogs, for example, begin mating within two days of coming out of hibernation, ensuring that they not only get the choice spots of water in which to breed but also that their numbers don't dwindle.
If your children or students are squeamish about frogs, worms and other garden critters, you might want to check out the book 100 Backyard Activities That Are the Dirtiest, Coolest, Creepy-Crawliest Ever! This book, available in Kindle and print, is filled with fun ways to learn about frogs, bugs and other creatures while crafting and exploring your environment.
The chytrid fungus is a terrible, deadly disease that kills frogs. It adheres to their skin while it's wet and grows, putting down roots and restricting frogs from absorbing air and water. It's a killer of frogs and is able to cause extinction through simply exisiting. It also causes terrible pain and suffering to the frogs, suffocating them while causing them to form ulcers, bleed and fail to control their body temperatures.