Kittens Eat... and Eat... and Eat Growing up is a very energetic business. A young kitten needs up to four times as many calories per pound of body weight as an adult cat. On the other hand, the kitten's stomach is much smaller than that of a grown-up cat -- at first not much larger than a human thumbnail. A kitten's food must be especially rich in calories and nutrients.
Amniotes are classified within the following taxonomic hierarchy: Animals Chordates Vertebrates Tetrapods. Amniotes are divided into the following taxonomic groups: 1  Birds (Aves) - There are about 10,000 species of birds alive today.
The most highly evolved class of the phylum Mollusca. It consists of squids, cuttlefishes, octopuses, and the chambered nautiluses. The earliest known cephalopods are small, shelled fossils from the Upper Cambrian rocks of northeast China that are 500 million years old. Cephalopods always have been marine, never fresh-water or land, animals.