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Saturday, 14 March 2015

Frog

There are approximately 4,800 recorded species of frog, including toads. They account for over 85% of extant amphibian species.

Out of the 4,800 species, of frog in the world, only one of them goes ‘ribbit’.

Before refrigeration people would drop frogs in their milk to keep it fresh. This has led to finding new antibiotics.

Living in the jungle trees of Malaysia, the Wallace's flying frog has developed very large webbed feet that allow them to glide away from danger. Sometimes covering 50 feet in the air.

The northern leopard frog swallows its prey using its eyes. It uses them to help push food down its throat by retracting them into its head.
Northern Leopard Frog (Lithobates pipiens). Photo taken near Ottawa. By Brian Gratwicke - http://www.flickr.com/photos/briangratwicke/5898747773/, CC BY 2.0, $3

When a frog's tongue hits prey, its watery spit fills the bug's crevices. As the tongue returns, the spit turns viscous, gripping the bug.

Frogs never drink, they absorb water by osmosis.

Some frogs vomit by throwing up their entire stomach, emptying it with their arms, then swallowing it again.

Frogs don't have external ears, but they do have ear holes, located directly behind their eyes.

Frogs find their way back to their breeding grounds by following the smell of the pond’s algae.

    Photo by Les Gosden
                         

The biggest frog is the appropriately named Goliath frog (Conraua goliath) of Cameroon. They reach nearly 30cm (a foot) and weigh as much as 3.3 kilograms.

The smallest frog is the Gold frog (Psyllophryne Didactyla) of Brazil. They grow to only 9.8 mm (3/8 inch).

The skunk frog (Aromobates nocturnus) is 62 millimetres (2.4 in) in length and native to Venezuelan cloud forests. A critically endangered species, its noxious but non-toxic skin secretion contains the same compound found in skunks’ emissions.

A single Poison arrow frog has enough poison to kill more than 2,000 people.

A single gram of venom from the toxic frog species Aparasphenodon brunoi could kill 80 humans.

After Disney released Princess and the Frog, over 50 children were hospitalized with salmonella from kissing frogs.

The phrase "boiling frog syndrome" is  a financial term for a firm which fails to recognize gradual change in the market. The term comes from the idea that a frog may not detect a slow temperature increase.

A group of frogs is called an army.


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