Tag vertebrae

What are the similarities and differences between the Chicken and the Tyrannosaurus Rex?

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What are the similarities and differences between the Chicken and the Tyrannosaurus Rex?

At first, scientists thought that dinosaurs were related to reptiles, but with research from bone and fossil material, they have formed a different view. In 2003, when scientists Jack Horner and Mary Schweitzer discovered unfossilised material inside the femur bone of a Tyrannosaurus Rex in Montana, America, they, and other zoologists and palaeontologists all over the world, documented that the Chicken and the Ostrich are living animals distantly related to the extinct theropod dinosaur Tyrannosaurus Rex (T-Rex). They said the next closest match is the Alligator.

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Vertebra, Vertebrae, Vertebrate, Vertebrata

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What is a vertebra, vertebrae, vertebrate, and Vertebrata?

A vertebra is bone that is part of an animal or human spine. The spine is also called a spinal column or backbone.

Vertebrae are several bones (plural) that form the spine.

A vertebrate is an animal with a spine. The plural is vertebrates.

The subphylum Vertebrata includes all animals in the world that have a spinal column.

Vertebrates include fish, amphibians, reptiles, birds, and mammals.

Invertebrata includes all the animals in the world that do not have a spinal column (‘in’ means without).

Invertebrates include insects, arachnids (spiders), molluscs (snails), crustaceans (crabs), worms, coral, starfish, sponges, and jellyfish.

Are there advantages in having a long neck?

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Are there advantages in having a long neck in the animal kingdom?

Having long necks helps giraffes, camels, and llamas reach leaves and branches in tall trees that smaller herbivorous mammals cannot reach.

Almost all mammals have seven cervical vertebrae (bones) in their necks, whether they have long necks or short necks. Humans have seven neck bones too.

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