Transcript of Organism Profile
LIFE OF COMMON FROGS HABITAT: Frogs have evolved tremendously over the millions of years that they have existed on Earth. They can be found on every continent, except Antarctica. This amphibian is very diverse and can live in warm or cold climates, wet or dry areas, even up high in canopies or down low burrowed in the ground. The Common frog is typically found near ponds, streams, lakes, and canals during mating season. In contrast, they also voyage out onto the dry land during most of the year in high grass, meadows, and wooded areas. Reproduction TADPOLES (POLYWOGS) NUTRITION Figure 3 Common Frog They consume insects, spiders, earthworms, and even snails or slugs. YUM! In Germany, the most common frog is the Common frog, Rana temporaria. Unfortunately, do to the frog's great camouflage I did not see one at the Seewog, (lake) in the background. There are between 4,000-5,000 different frog species. Adult common frogs are carnivores that consume food to obtain and maintain life. They use their long tongues that are attached at the front of their mouth, to snatch food from the surroundings. If they need to, they will also use their front legs to push the food into their mouth further. The food is then processed through the small intestines, to the large intestines, and then the solid waste is expelled from the cloaca. Liquid waste can be exited from the bladder, or their permeable skin. Female common frogs produce haploid eggs within their ovaries. The male frogs will use distinctive mating calls to attract a female, and once they attach, the mating can last a day or longer. During mating the female releases 1000-4000 eggs outside the body within water for protection. Then, the male will cover them with haploid sperm. Once the eggs hatch within water they look like the picture I captured below. Tadpoles are herbivores that feed on things like algae. When metamorphosis begins the tadpole will grow front and hind legs, and lungs. Before leaving the water their digestive system will transition to carnivorous. Unfortunately only about 5 in every 2000 tadpoles make it to adulthood, due to predators. Figure 1 Green Frog, Rana esculenta Figure 2 Frog diagram Adaptation The common frog has legs equipped to assist them in jumping 20 times their body length and swimming. Their eyes are essential for them to catch prey to eat. The eyes have 3 sets of lids for protection and focusing. They are situated on the upper sides of their head to view predators, and to help focus on moving food, like flies. Their permeable skin allows them to breath through it, and to also camouflage themselves from predators FACTS Common frogs can live up to about 8 years old. Full transcript
They hibernate in piles of leaves, compose piles, or mud for months during winter.
They do not eat at all during the mating season.
The females are larger than the males.
References Beltz, Ellin (2005). Frogs: Inside their remarkable world. Buffalo, New York: Firefly Books Inc. Figure 5 frogs Body Green Frog. (2010). Green frog in FRW. [Photograph]. Retrieved May 14, 2013 from http://www.frw.ca/rouge.php?ID=108 Moncrieff, Chris. (2005). Common Frog Eating. [Photograph]. Retrieved May 14, 2013 from http://www.dreamstime.com/stock-images-common-frog-eating-image1460714 Frog diagram. (2006). Frog Diagram. [Photograph]. Retrieved May 14, 2013 from http://www.freewebs.com/worldchatz/FrogDiagram.jpg Brown, David. (2006). Common Frog at Etherley Moor. [Photograph]. Retrieved May 16, 2013 from http://www.freewebs.com/worldchatz/FrogDiagram.jpg Sensory This frog is equipped with
a lateral-line organ. With this, the frog can sense movement within the water or at the surface. They share this trait with other amphibians and fish. THIS FROG, NOR ANY OTHER FROG IN EXISTENCE HAS THE ABILITY TO CAUSE HUMANS WARTS!! Hofrichter, Robert (2000). Amphibians: The world of frogs, toads, salamanders, and newts. Buffalo, New York: Firefly Books Inc. Laurila, A., Pierre-Andre Crochet, & Merila, J. (2001). Predation-induced effects on hatchling morphology in the common frog (rana temporaria). Canadian Journal of Zoology, 79(5), 926-930. continue to view!