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