If you have been following us on Twitter or checking out our Zazzle, Redbubble, or Threadless stores, you might have noticed a new design last week. An adorable frog sitting among leaves is our newest watercolor and today I thought that it might be interesting to share some frog facts with you.
Did you know that there are over 5,000 species of frogs in the world? They live just about anywhere except for some islands and Antarctica. Frogs are amphibians, which means that they can live in water or out of water equally as well and move between the two. Frogs cannot, however, live in any kind of saltwater, so they only live in freshwater lakes, ponds, rivers, or streams, or in areas of frequent rainfall. Some frogs live in deserts, however, and they still manage to survive the minimal rainfall by hiding out in the mud. Frogs don’t drink any water; they get all the moisture they need from absorbing water through their skin. Unlike fish, though, frogs don’t have gills and so they need to breathe oxygen. That’s why they keep their nose above the water’s surface.
Frogs can lay up to 4,000 eggs per spawning season. Frogs don’t, of course, hatch as frogs. They hatch as tadpoles and have to grow their legs and lose their tail. Some frogs in Asia lay their eggs in trees hanging close down to the surface of the water so that when the tadpoles hatch, they fall directly into the water. You might be surprised to learn that frogs are actually very attentive to their young. While still in the eggs, some species of poison dart frogs will regularly check up on their offspring and ensure that they keep warm. Some species of frogs check up on their tadpoles to see if they are finding enough food and will help them if they aren’t. Some frog species are carried on their father’s back for a time before they are ready to brave the world on their own. Some are carried in their father’s mouth until they are fully-fledged frogs, still small but no longer tadpoles.
Speaking of small frogs, the smallest frogs in the world are less than half an inch in length (and are possibly the smallest vertebrates we know of, too), while the largest is over a foot long and weighs more than 7 pounds. Frogs come in all different sizes, and colors, too. The most colorful frogs are such in order to warn away predators, because no matter how poisonous they are to anyone who wants to eat them, they still don’t want to be attacked. The most poisonous frog is the golden dart frog. One alone is capable of killing close to 1,000 people.
Frogs’ back leg muscles are so powerful that they can project themselves up to 20 times their own length in a single jump. Their back legs are also long and perfectly adapted for swimming. Frogs are carnivorous, primarily insectivores, and they swallow their food whole after catching it.
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