Frog Defence Mechanisms Research into several frog species has produced evidence that although frog’s possess the same general characteristics, many different species have developed their own unique methods of defence and escaping predation. Some species of frog have discovered that one of the best forms of defence is simply to hide. Many frogs have developed a great number of different disguises to escape the sight of potential predators. For example the Mossy frog (Rana septentrionalis- Fig. 2.7) – is covered in small bumps and spines, (Raxworthy, 2007), which along with it’s brown/green colouration allows it to blend perfectly into it’s mossy surroundings.
After a few key points, it’ll come into view that one species is clearly more dominate than the other. More often than not, both reptiles and amphibians are mistaken for one or the other. One feature to determine if an animal is a reptile or an amphibian is by its physical characteristics. Amphibians have smooth moist skin. By touch they feel slippery and sticky.
“Frankenfish” entire diet mostly contains other fish, as well as plants and insects. Every now and then, they also enjoy human flesh. (Urbanlegends.about.com). Parent Snakeheads are known to over protect their young. In one instance, the parent attacked a human who approached their babies.
Mealworms would be considered prey rather than a predator. They are consumed by various animals such as a variety of birds, spiders, other beetles, rodents, and lizards. Some people from other countries will also consume these creatures (http://www.enchantedlearning.com/subjects/insects/beetles/mealworm/mealwormlifecycle.shtml). Purpose: This experiment is done to see which foods and liquids a mealworm likes. We also see what they are like, how they move around, and how fast some move compared to others.
Compared to the first two steps the last two steps of the trail look like a Matis massage. The next stage to the ritual is to inject frog poison from green tree frogs directly into the blood stream with needles made from wood. The poison is also placed onto open incisions on the skin. If the hunter does not throw up it shows great resistance and in the tribe
Some fish, though, such as Hawkfish, Lionfish, and some predatory shrimp and crabs may eat the Scarlet Skunk Cleaner Shrimp. It will not tolerate copper or high levels of nitrates in the aquarium, but will require correct levels of iodine in the water to promote proper
Aquatic environments are generally split into three categories; fresh water, marine (salt water) and estuarine (a combination of salt and fresh water). The organisms that live in each of these environments have specific adaptations that allow them to respond to changes in their surrounds. Fish generally prefer either fresh water or salt water and are unable to cope with a change from one to the other. For example the cells in fresh water fish are saltier than the surrounding water, so due to osmosis (the diffusion of water through a semi-permeable membrane) water is constantly flowing into its body. For this reason fresh water fish require very efficient kidneys to remove all of the extra water, and methods of maintaining and collecting the salt lost through urination.
Despite the squeamish reactions of some classmates, frog dissection has many benefits. Amid the scissors, specimens, and unforgettable foul aroma of the lab we discovered specific lessons that extend beyond basic biology. The most obvious value revolves around the tactile experience, but we also learn respect for life and proper dissection skills that will be helpful in higher level lab classes. Most animals used in dissection(including amphibians, birds, snakes, turtles, fish and invertebrates) are taken from the wild, even though many have been declining in population. Demand for Dissection Specimens Increases Pressure on Threatened Species Researchers from the World Conservation Union reported in 2004 that a third of all amphibian species around the globe, including frogs, were threatened with extinction.
Spiny Anteater The unusual animals called echidnas are also known as spiny anteaters even though some eat mostly earthworms. The echidnas and the platypus are the only living mammals that lay eggs. Until recently scientists believed that there were only two species, or kinds, of echidnas—the long-nosed echidna and the short-nosed echidna. In 1999 a new species of long-nosed echidna was identified, but little is known about it. Where echidnas live Echidnas usually live in forests and meadows, often at high elevations.
Title The Double Life of the Frog Introduction Although the frog is a common animal in many parts of the country, scientists note it’s rather uncommon to life cycle. The word “amphibian,” generally used to characterize frogs, literally means “having two lives,” although, of course, the frog lives only once. Thesis statement But that one life is divided into two separate distinct phases, the first one of which is with two subtopics spent underwater and the second, primarily on land. Body During the initial stage of a frog’s life, it is not really a frog at all, but rather a tadpole paragraph 1 or pollywog. When such a tadpole hatches from an underwear jellylike mass of eggs, it (develops very much resembles a fish in outward appearance, with a vertical tail and with gills on subtopic 1) sides of its little head.