Facts About Frogs, At A Glance

By Irina Bright.

This article is part of our Environment section

See the complete list of all our Articles about Rainforest Animals here.

Find a summary of some fascinating facts about frogs below.

frog sitting on a branch © Michael Ushakov
  • 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.

Frog. (September 23, 2007). In Wikipedia, The Free Encyclopedia. Retrieved September 24, 2007 from http://en.wikipedia.org/w/index.php?title=Frog&oldid=159713650

Written by:     Irina Bright
Original publication date:     2007
Republication date:     2020