Reference Article

from Wikipedia, the free encyclopedia

True frog

The True frogs (of family Ranidae), have the widest distribution of any frog family.

They are abundant throughout the world, excluding Australia and Antarctica. (The only ranid species native to Australia, the Australian wood frog (Rana daemelii), is restricted to the far north.) The true frogs are present in North America, northern South America, Europe, Asia, Madagascar, Africa and from the East Indies to New Guinea.

The true frogs vary greatly in size, ranging from small, such as the Wood Frog (Rana sylvatica), to the largest frog in the world, the Goliath Frog (Conraua goliath).

Many of the true frogs are aquatic or habit close to water.

Most species lay their eggs in the water and go through a tadpole stage.

However, as with most families of frogs, there is large variation of habitat within the family.

Those of the genus Tomopterna are burrowing frogs native to Africa.

They exhibit most of the characteristics common to burrowing frogs around the world.

There are also arboreal species of true frogs.

Typically, true frogs are smooth, moist-skinned frogs, with large, powerful legs and extensively webbed feet.

Note: This article excerpts material from the Wikipedia article "True frog", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:


Related Videos

last updated on 2014-10-22 at 10:48 pm EDT

Scientists Take Leap to Resurrect Extinct Frog

Scientists Take Leap to Resurrect Extinct Frog

Reuters (Mar. 20, 2013) Like the plot of the blockbuster movie 'Jurassic Park,' an effort to revive an extinct species of frog is showing signs of success in a laboratory in Australia. Scientists at the University of Newcastle, part of the so-called Lazarus Project, have taken an important step in bringing the Gastric-brooding Frog back to life, by implanting its "dead" cell DNA into the eggs of a living frog relative. Rob Muir has more.
Powered by NewsLook.com
'Robo-Frog' the Robotic Romeo Who Gets the Girl

'Robo-Frog' the Robotic Romeo Who Gets the Girl

Reuters (Dec. 6, 2013) A robotic male frog has helped researchers unveil the mysterious nocturnal mating habits of Panama's tungara frog. 'Robo-frog' was recruited to woo potential mates and shed light on the species' romantic rituals. Jim Drury reports.
Powered by NewsLook.com
Cuban Tree Frog Hitches Ride to Canada

Cuban Tree Frog Hitches Ride to Canada

CBC (Apr. 17, 2013) After hopping onto a shipment from Florida, a tree frog has found a new home in snow-covered Saskatchewan.
Powered by NewsLook.com
Frog Species Didn't Croak After All, Say Scientists

Frog Species Didn't Croak After All, Say Scientists

Reuters (June 6, 2013) A frog species native to Israel's north which was declared extinct in 1996 has been re-discovered and dubbed a "living fossil" by the scientists of Jerusalem's Hebrew University.
Powered by NewsLook.com

Related Stories


Share This



Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins