uterine and smooth), from lower classes within the vertebrate phylum (amphibian, fish and cyclostome) and from representatives of different invertebrate phyla (arthropod, mollusc, echinoderm ...

A major event in vertebrate evolution was the transition from aquatic to terrestrial life, made possible by the emergence of ...

Classification is putting things into groups. Living things can be divided into these groups or 'classified' by looking at similarities and differences between the way they look and behave. Have a ...

Other invertebrates, like insects, spiders and crustaceans, have a hard outer casing called an exoskeleton. This protects their body a bit like a suit of armour. Vertebrates have a backbone inside ...

There are seven generations of Corwins in the Aquebogue, Long Island, town cemetery. Their graves overlook the farm that's been in the family since the 1640s. Some family members' tombstones are ...

In contrast to vertebrates, invertebrates offer a number of advantages, ranging from (but not limited to) their simpler body organization to their unique regeneration phenomena. These include whole ...

Most vertebrates living outside the tropical zone show robust physiological responses in response to seasonal changes in photoperiod, such as seasonal reproduction, molt, and migration. The highly ...

The classification of a production area determines the treatment required before Live Bivalve Molluscs (shellfish) may be marketed for human consumption. Shellfish production and relay areas are ...

The study of the physiology and ecology of animals that don't have backbones, ranging from worms to sea stars, and of parasites, which can often provide insights into complex ecosystems. (Sea star ...

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