Facts About Frogs
At A Glance

Find a summary of some fascinating facts about frogs below.

• There are more than 5,000 known species of frogs
• The largest diversity of frogs is found in tropical rainforests
• Their size ranges from 1cm to 30cm in length
• Most of them are semi-aquatic animals, i.e. they live both on land and in water
• While in water, frogs can “breathe” with their skin as oxygen passes through it into the blood
• While on land, they breathe with their nostrils as the throat puffs out and the air is forced into the lungs
• Fertilization in frogs is external: females lay eggs (up to many thousands) which are then fertilized by males
• Adult frogs are mostly carnivorous eating such invertebrates as insects, spiders etc
• They often use their sticky tongues to catch moving prey
• Frogs are considered an “indicator” species that can point to changes in environments for whole ecosystems

Please visit the following articles to learn more about tropical frogs and amphibian conservation.

For articles about some individual species of frogs please visit the blue poison frog, golden poison frog and strawberry poison frog articles.