The skeletal system of the Northern Pintail has many advantages over some of the dabbling ducks the Pintail co-exist with. The bird has hollow bones all over its body to reduce weight, in return helping with flight. On the note of flight, the hinged wing bones are some of the least dense bones
A Smithsonian researcher led a team that discovered 18 new species of spiders in Madagascar that looked like pelicans. The spider is formally known as Archaeids which has an extended, arching carapace and two extra-long mouthparts, the chelicerate, which creates an illusion of a neck and a beak that gives the arachnid a pelican appearance. National Geographic described the spider as quiet as an owl, quick as a cobra, small as a grain of rice, and is more like a venomous pike when it strikes its prey. The Smithsonian noted that the purpose of the unusual appearance of the Archaeids is to make it prey hunting easier. The pelican spider eats only spiders, not other insects.
All australopithecines possess anatomical characteristics of the pelvis, femur and spinal column that facilitate bipedal locomotion. Whether or not the australopithecines were fully adapted bipeds is still hotly debated in the literature. There are several important adaptations to bipedal locomotion that can be observed on skeletal material. First, the foramen magnum is shifted forward, underneath the skull. This positioning is indicative of the angle at which the spinal cord enters the skull (Tobias, 1998).
Introduction: Daphina are planktonic crustaceans that belong to the class Phyllopoda(Branchiopoda) to which flattened leaf-legs used in producing a water vcurrent for their filtering apparatus. In the brachiopods, Daphnia belong to the order Cladocera whose bodies are encloosed by carapace, which is made up of chitin and polysaccharide. The carpace forms double wall separates hemolymph anda part of body cavity.Animals which belong to the order Cladocera, have up to 10 pairs of appendages, which include antennules, antennae maxillae, madibles, five or six limbs, which also form an apparatus for both feeding and respiration(this apparatus is used to filter food particles even bacteria. So, they are filter feeders) and a pair of claws. In Cladocera,
Introduction: Isopods are crustacean, which is split into smaller groups, called order. Scientifically Isopoda order is called isopods, which include pill bugs and sow bugs (Crustacean class). Most of the time isopods are mistaken for “bugs” since they look like insects. Even though they are closely related to crustaceans, their bodies are particularly similar to crab and other sea creature with shells. The isopods have three distinct regions such as the head, thorax and abdomen (CISEO).
These two reptiles have traits that are similar and different. This is how their traits are similar. They both shed their skin. Shedding skin is when a snake’s old skin peel off, and they get new skin. Also they both have thick bodies with keeled (colorful) skin.
One type of protist is an amoeba The amoeba is scientifically known as the Amoebidae. It is mostly a freshwater organism. It is commonly found in ponds, rivers, lakes, and one in a while the ocean or bay. They are typically on leaves of plants so it can find food but you may find it floating to. Amoebas are also rarely found in the soil and sometimes they do go inside a animal body like a parasite.
Wegener noticed that the fossil, Cynognathus had been observed in both Africa and in South America. Cynognathus was a reptile that living on the land and lived for 200-250 million years. Today, the form of vegetative of the continentals are very different to each other. So, there will be no possibilities of the same type of animals will live on both continentals during the same period. Most scientist agreed with Wegener that the land living Cynognathus could not have cross the Atlantic Ocean by swimming as it cannot fly and does not look like it can swim, certainly not crossing the Atlantic
Drosophila is a genus of small flies, belonging to the family Drosophilidae, whose members are often called “fruit flies”. One species of Drosophila in particular D.melanogaster, has been heavily used in research in genetics and is a common model organism in developmental biology. The entire genus, however, contains about 1,500 species and is very diverse in appearance, behavior, and breeding habitat. Scientists who study Drosophila attribute the species’ diversity to its ability to be competitive in almost every habitat, including deserts. (Ref to Book of Deepa Parvathi Va, Akshaya Amritha Sa, Solomon FD Paul).