Axolotl Research Paper

Ardipithecus Ramidus: Pretty long face, cranial capacity looks small compared to the size of the head

The scientific name of this organism is Fisherola Nuttalli. The Columbia River Limpet is a small lunged (pulmonate) snail. According to an article by Celeste Mazzacano at the Xerces Society for Invertebrate Conservation (http://www.xerces.org/giant-columbia-river-limpet/), “It has a limpet-like appearance, with an uncoiled conical shell that has a wide base and a smooth, eccentric (off-center) apex. The shells may reach up to 8 mm long, 6.25 mm wide, and 3 mm high; they are rich brown in color and appear striped due to fine concentric growth rings (Neitzel & Frest 1992).” This organism is known as an invertebrate due to the lack of a backbone. Invertebrates lack a vertebral column, which is made up of bones called vertebrae. The scientific name for animals lacking a backbone is Invertebrata. On the other hand, animals with a backbone are known as vertebrates, the scientific name being Vertebrata. There are over 1

Distribution – The American eel occurs in a variety of habitats. Known from Greenland to Brazil, it probably spans a wider range of latitudes than any other species in North America. American eels occur as far west as New Mexico, and are common throughout the Caribbean and the West Indies. Although it is native to much of Texas, the construction of dams, which impede upstream spawning migrations, has eliminated this species from most central and western areas of the state.

The Mexican axolotl salamander looks weirdly cute at the first glance. It has ghostly features which also remind you of the pokemon characters, thanks to their funny-looking faces and limbs. They are found only in the lake complex of Xochimilco which is near Mexico City and unlike other salamanders, they live permanently in water. Very rarely would you find an axolotl outside of water and that too, at a mature stage of their life. Although they are typically black or brown, the albino variety is more common, which is also quite weird. They can be quite large, and can grow up to a foot! It is neotenic, meaning that even when it grows into an adult, it retains its juvenile traits. Those include its dorsal fin which runs along the length of its body and its feather-like external gills which protrude from the back of its head.

An axolotl is a species of amphibian that is found in the higher altitude lakes of Mexico and South America, but is now more commonly found in a fish tank in a local household anywhere in the world. Axolotls are Carnivorous, which means that they eat other animals: they mainly feed on insects, worms, and mollusks like mussels, clams, and cockles. Axolotls can be closely related to the tiger salamander. The only difference between them though, is that the axolotl keeps its tadpole tail for its whole life. The feather like headpiece around the axolotls head is actually gills, which allows the axolotl to breathe underwater. Axolotls can also regenerate and regrow limbs that have been damaged or removed. An axolotl’s life span is up to 25 years,

The axolotl can only be found in one complex of lakes close to Mexico City in the south-central of Mexico. It is a carnivore which means that it only eats meat. It can eat on flesh of other water animals in the lakes. It can also eat worms, insects, and molluscs. Its skin type is permeable. That means that water can pass through it. It is kind of like it is see through. It has feathery gills and a flattened-shaped head. Its conservation status is endangered.

Barnacles brood their eggs to release shrimp-like larvae that look very little like the adult. The larval period consists of two stages (Fig 3.1). First being the nauplius stage whereby the larvae only has one eye, a head and a telson. After 6 months it develops into a cryptid. During this period the larvae

Atractosteus spatula is the 3rd largest freshwater fish in North America and is capable of reaching lengths of 3 meters or more and can weigh up to 140 kilograms (Alfaro et al. 2008). Typically the adults mature when they are 3 years old and around 0.6 meters in length (DiBenedetto 2009). Typically females are larger, longer, and heavier than their male counterparts in the same age class and also can live to 50 years or more while the males typically live to around 26 to 30 years (Buckmeier 2008; Buckmeier et al. 2012; DiBenedetto 2009). The vast majority of A. spatula in the wild are between the ages of 3 and 6 years (DiBenedetto 2009).

Axolotls (ACK-suh- LAH-tuhl) are adorable amphibians that are reminiscent of happy little aliens. The Axolotl’s name is thought to mean “water monster.” These amphibians are carnivores that use their tiny teeth to hold, not chew their food. Although they can reach up to one foot in size they are usually about the size of a teacup. In the wild they can live anywhere from ten to fifteen years. The lake complex xochimilco (so-chee-mill-koh) in which they live is near Mexico City. Axolotls do not go through metamorphosis like other amphibians and they never leave their watery home. Although they develop lungs, they prefer their gills and even skin to breathe. Sadly, the little water monsters are endangered due to pollution, natural predators like

Currently, <> is distributed throughout drainages of the Mississippi River, Great Lakes, and Hudson Bay. Historically, its native range has extended from the brackish waters of the Hudson Bay to the St. Lawrence River estuary in Canada. While most populations have been devastated by anthropogenic factors, healthy ones still exist in the St. Lawrence River near Montreal, Lake Winnebago System in Wisconsin, and Lake St. Clair of the Great Lakes. Typically, <> is found primarily in large freshwater lakes and rivers.

We often connect ourselves to the world through our appearances. One of the first characteristics we notice about another human is the color of their skin. It is unavoidable, as the largest organ of the body, it covers and highlights our individual features and forms a protective wall against the elements. There is no escape from the social repercussions our pigmentation causes no matter what range of the very broad spectrum of color we fall into. I have never thought so much about the genetic and social evolution of skin and its properties until I read Nina Jablonski’s Living Color: The Biological and Social Meaning of Skin Color. This book encompasses, in great detail, how our skin has evolved, adapted and mutated throughout time and in what

In order to be able to eat they swim and capture fish, krill, and some species of squid (Wallace, 2015)

It’s even more fascinating when you realize the history of the lake, and that that entire, sprawling body

Class Osteichthyes, the biggest class of vertebrates with more than 29,000 species, comprises of the bony fish . These fish have a skeleton much stiffer than the cartilaginous fish since it is fortified by calcium salts. Bony fish have fantastic smell like cartilaginous fish, yet not at all like the different classes of fish, bony fish additionally have intense visual perception. Bony fish additionally have adaptations that permit them to stay buoyant. A unique organ called a swim bladder housed under the hard skeleton is a gas filled chamber that permits the hard fish to stay coasting in the water. Another adaption is the operculum, a fold on every side of the fish that covers the chambers lodging the gills. A bony fish can inhale without swimming just by moving the operculum. Different signs of these fish are matched blades, numerous teeth, dermal scales in the skin (in many species), and various vertebrae. Most bony fish are beam finned fish, implying that they have slim, adaptable skeletal beams. Lobe finned fish, the other sort of bony fish, have solid balances upheld by bones. There is only one type of Lobe finned fish left, the coelacanth, still lives. In any case, it was the lobe finned fish that made the colonization of area.

brown antecostal ridge. Antenna 8 segments, Legs; Mid- and hind tarsi: 2-segmented, The hind leg tibiae