The skeletal system of Chordata
Chordates are classified as animals that at some point in their life posses a hollow nerve cord and a notochord, which is a flexible rod that lies between the nerve cord and the digestive track. This is one of the most recognizable Phylums to humans because it includes very common animals. The phylum contains about 43,700 species and is the third largest phylum.
Crocodile (Crocodylinae)
The Crocodile is covered with scales made up of the protein keratin, which also makes up horns, hooves, feathers, and claws. Underneath these scales there are small Osteoderms or Scutes, which are small plates of bone. These Osteoderms are found mostly along the spine and stomach. Scutes cover the Crocodile from head to tail and serve as an additional protective layer. Beneath the Osteoderms are Osteoscutes which add yet another layer of protection and also help absorb heat from the sun.
The Crocodile is covered with scales made up of the protein keratin, which also makes up horns, hooves, feathers, and claws. Underneath these scales there are small Osteoderms or Scutes, which are small plates of bone. These Osteoderms are found mostly along the spine and stomach. Scutes cover the Crocodile from head to tail and serve as an additional protective layer. Beneath the Osteoderms are Osteoscutes which add yet another layer of protection and also help absorb heat from the sun.
Tiger (Panthera Tigris)
The Tiger Possesses an endoskeleton like many other birds and animals. Their skeleton serves to keep the animal upright and help support its muscles. A tigers internal skeleton also provides protection for its vital organs. Their skeleton is comprised of hard bones held together by ligaments. A tigers spine is made up of 30 vertebra, which gives it improved strength and flexability
The Tiger Possesses an endoskeleton like many other birds and animals. Their skeleton serves to keep the animal upright and help support its muscles. A tigers internal skeleton also provides protection for its vital organs. Their skeleton is comprised of hard bones held together by ligaments. A tigers spine is made up of 30 vertebra, which gives it improved strength and flexability
Bald Eagle (Haliaeetus Leucocephalus)
Like most birds, but unlike most animals, the Bald Eagle has hollow bones. A bald eagles bones only weigh about one half pound. Like in all mammals they have an endoskeleton that is used to protect and support its body. The eagles beak, talons, and feathers are made of Keratin.
Like most birds, but unlike most animals, the Bald Eagle has hollow bones. A bald eagles bones only weigh about one half pound. Like in all mammals they have an endoskeleton that is used to protect and support its body. The eagles beak, talons, and feathers are made of Keratin.