Station 2 Specimen A: I hypothesize that Specimen A which is a red bald Uakari is arboreal quadruped. This is because the red bald Uakari has a more or less equal fore-to-hind limb ratio as such the forelimb measures at 11cm for the ulna and 11.4cm for the radius and the hind limbs measure at 13.3cm for the fibula and 13.7cm for the tibia. This indicates that the red bald Uakari uses both fore-to-hind limbs as a primary form of locomotion to get from tree to tree. In addition, the red bald Uakari has a triangle shape back foot with a pushed back big toe that is close to the heel making it easier to grasp tree limbs and branches. Also, the conclusion can be supported by the shape of the cast of the skull matches the shape of the red bald uakari and the ridge on the occipital can indicate an area for attachments of muscles to keep the skull facing forward primarily because the Uakari is an arboreal…
The convergence in external morphology of sharks, penguins, and porpoises is attributed to selection pressures that are common to these groups…
The White-Nosed Coati (Nausa Narica) belongs to the Procyonidae family and is a relative of the raccoon. The most prominent feature that distinguishes Nausa Narica is it’s long tail, which extends to about 50 cm in length, and accounts for approximately half of its total body span. The white-nosed coati inhabits dry and moist forests all throughout South America where climbing trees are an important aspect of their day-to-day life. The main predators of the white-nosed coati, boas and hunting cats and birds of prey, are also adapted to arboreal life making efficient climbing and balance while climbing crucial for the coatis survival. The length of their tail thus presents itself as an acquired trait that enables them to maintain balance as they climb trees in addition to its uses in the social organization of the species. As Hass and Valenzuela (2002) observed in Nausa narica their tail has uses in the social organization within a population against the threat of predators. The length of their tail allows them to be seen over tall grasses and vegetation when on the ground, enabling them to communicate with each other as well as communicate to the predator that they have been identified as a potential threat. It has not yet been established whether the white-nosed coati would have the same survival and reproductive success in their environment with their existing predators if their tails were shorter in length resembling that of its close relative the raccoon, although it seems plausible. The length of the white-nosed coatis (Nausa narica) tail is an adaptation in response to the external threat of predators that affects their survival within their environment.…
I will consider the dwarfing hypothesis in the context of analyzing whether the morphological features of the callitrichids are primitive or derived. Although the callitrichids have many common features (including twinning, small body size, reduction of the molar tooth row, simplification of the upper molars, and claws) in this paper I will focus on the morphological features: body size, claws and the dental features of the Callitrichidae (twinning is an important common character of the callitrichids, but will not be considered here). One important hindrance to finding support for the dwarfing hypothesis has been gaps in the fossil record. However, using the available fossil data and modern studies of callitrichids I will show why each feature is primitive or derived, and how it applies to the dwarfing hypothesis.…
7) What biases did you observe in each article? Why do you think they are biases?…
| |dark stripes , large |a greenish body and a |limbs , one or two claws|distinct crest on its |white, yellow, brown and black |…
Some states feel that the Common Cre takes away the schools choice of what they offer their students educational wise. In the second article, with the common core, teachers are not able to let the students be creative and learn outside the box.…
Over much time, evolution through natural selection has given both of these lizards similar characteristics which help them survive in harsh desert conditions. They have developed pointed heads and flattened duck-bill snouts for burrowing and diving into the sand, enlarged scales…
There is a vast amount of insects that roam this planet and many insectivores are needed to help keep their populations in check. Many have adapted to support a sustainable food source and survive on a diet solely of insects. One in such would be that of the Pangolin from that of many parts of Africa and Asia. Interestingly enough, this scaly mammal for its size, has the largest tongue of any mammal and as well the stickiest saliva. These adaptations give the Pangolin a better opportunity to catch prey such as ants and termites. They in turn walk on their hind legs and use their front claws for digging and the smashing of prey. Although sad, this little mammal has been sought after by many human poachers greatly affecting their population and sustainability in the wild. They…
U.S. Air Force. (2011). Fact Sheet General Aotomics Predator. National Museum of the Air Force, 344 & pg1.…
Due to scarce fossil records, the official origin of this species is currently unknown. However the first appearance of viverridae in Europe occurs in the early Oligocene & the Miocene Periods in Africa. Studies also suggest that their skeletal morphology & tooth structure have remained the same for an estimated 40-50 million years. Civets, Genets, and Linsangs have long, sinewy bodies, elongated heads with pointed snouts and especially strong claws. Most have shorter fur with a more slender appearance and a tail that can exceed body length. Although the civet species is very diverse, their adaptations are based upon the niche they occupy. The African civet has digitigrade feet, non/semi-retractable claws,…
The exoskeleton of arthropods is harder and provides more protection than the cuticle of annelids.…
The Stomp Rocket is age appropriate because it is a skilled down version of the Stomp…
Echo-Description of toy-- Our toy design is an Ophiacodon( pronunciation Oh-fee-ack-oh-don.) An Ophiacodon is a lizard like dinosaur. The longest this particular species grows is 3 meters long. How Ophiacodon lived and hunted is still a matter of debate today with some claiming that it was a semi aquatic carnivore that fed on fish and amphibians. Support for this comes from the small and numerous teeth that would have been great for gripping slippery prey like fish. There is also a notch at the end of the upper jaw, a trait commonly seen in animals that have a piscivorous diet. Others however suggest that the deep skull would have been more of a hindrance and that the legs seem to support and lift the body up as opposed to just sprawling out…
Ant interesting fact to premiere with in regards with this issue is the fact that a similar study was done with carnivores (p.1). It is this comparisons between these two groups that emphasizes the importance of this study because it shows an intrinsic difference between the evolution of primates and carnivores in terms of manipulation complexity. It was found that one of the reasons behind the differences in the two studies was the primate adaptation for a grasping forelimb…
