How much do you know about frogs?

frog with head tilted
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Frogs and toads are found all around the world, with a spectacular diversity in size, shape, habitat and habits. How much do you know about these amazing creatures? Test your knowledge with this quiz!

Question 1 of 12

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frog underwater
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Frogs are amphibians, a word of Greek origin that means:

The word amphibian is from the Greek word amphibia; amphi means both, or both kinds, and bios means life. The reference is to the fact that many species of frog live both on land and in water.

Question 2 of 12

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baby frog
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Baby frogs are called:

Most frog species lay eggs from which tadpoles hatch. Eventually these tadpoles grow legs and transform into frogs. Some species, though, skip the tadpole part and give birth to tiny, fully formed froglets.

Question 3 of 12

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cane toad
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Which frog species is the largest on Earth?

The Goliath frog wins for world's biggest. The species can grow to be over 1.5 feet long (not counting legs!) and weigh more than 7 pounds. This species is found in rainforests at the equator in western Africa.

Question 4 of 12

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frog family
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Frogs and toads belong to the same:

Frogs and toads are both in the order Anura. However the species fall into 33 different families. The Bufonidae family is that of "true toads" and includes around 580 species. Meanwhile, "true frogs" are in the Ranidae family, which has around 600 species. There are thousands of species that fit somewhere in between. The use of "frog" or "toad" in a species name has little to do with taxonomy. Instead, the title typically describes if the species is aquatic or semi-aquatic with smooth, wet skin (frog) or if the species is terrestrial with dry, lumpy skin (toad).

Question 5 of 12

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strawberry dart frog
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Which species is this colorful frog?

Known as the strawberry poison frog or the blue jeans frog, this is a member of the poison-dart frog species. Found in Nicaragua, Costa Rica and Panama, it is not the most poisonous dart frog (that title goes to the golden poison-dart frog) but it is the most poisonous member of its genus. There are an amazing 15 to 30 different color morphs for this species, and among them is this version with a red body and blue legs. It make the frog look like it is wearing a pair of jeans.

Question 6 of 12

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group of frogs
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What is a group of frogs called?

A group of frogs is called a knot, and can also be called an army or a colony.

Question 7 of 12

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invasive toad
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This species is considered harmful and invasive in many introduced areas:

A native of Mexico, Central America and South America, the cane toad has been introduced to many other parts of the world. Sometimes intended to provide pest control, and sometimes released by accident, the cane toad with its voracious appetite, indiscriminate menu choices, and toxicity to predators can quickly get out of control. It is considered a damaging invasive species in many areas where it has been introduced.

Question 8 of 12

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frog evolution
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How long have frogs been on the planet?

According to the fossil record, the first frogs evolved more than 200 million years ago. They have survived several mass extinction events, though in the last few decades they are experiencing a mysterious massive global die-off, caused by disease, changing global temperatures, pollution, habitat destruction, or a combination of all of these factors. This is one extinction event they may not survive.

Question 9 of 12

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frog on leaf
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All frogs hop.

Though frogs are famous for hopping, not all of them participate in the fun. For instance, the waxy tree frog doesn't hop but instead walks like a lizard.

Question 10 of 12

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The species of frog famous for delivering its babies through its mouth is called:

The gastric brooding frog was one of the weirdest species of frog when it comes to method of reproduction. The offspring were actually incubated in the stomach of the female and, once they formed into froglets, were birthed through her mouth. This unique form of reproduction made headlines when the species was discovered, and though it has been extinct since the early 1980s, there is another reason why the gastric brooding frog continues to fascinate researchers. It is one species in the Lazarus Project, a project aimed at bringing back extinct species. So far, researchers have been able to develop embryos of the species, though none have yet lived past a few days.

Question 11 of 12

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frog tongue
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A frog's tongue can snap back into its mouth at a speed of:

A frog can launch its tongue out, catch its prey and return its tongue back to its mouth at a speed of 15/100ths of a second. That's a speed faster than most eyes can track movement. Even so, technically it's not all that fast; the movement is actually only a speed of around 2.3 miles per hour, but because the distance is so short, it looks lightning fast.

Question 12 of 12

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This species of frog can survive for weeks with most of its body frozen:

Wood frogs are found from the southern Appalachians all the way up to northern Alaska. The fact that a frog species can live near the Arctic circle is amazing, but even more amazing is the way it copes with the cold. This species can survive for weeks on end with 65% of its body frozen. It's a process called cryoprotection, in which urea and glucose combine to create a sort of antifreeze that keeps the frog alive despite the fact that no organs are functioning. Essentially, the frog is dead, until the weather warms up and the frog thaws and becomes active again.

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frog with head tilted
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