We performed deep transcriptome sequencing on more than 220 invertebrate species, representing 9 metazoan phyla (Arthropoda, Annelida, Sipuncula, Mollusca, Nematoda, Platyhelminthes, Cnidaria, ...

This is a preview. Log in through your library . Abstract In order for photoperiodic phenomena to be expressed by any animal, the organism must possess some sort of photoreceptor. This may be in the ...

Classification, systematics, and phylogeny -- Animal architecture and the bauplan concept -- Animal development, life histories, and origins -- The protists -- Phylum Porifera : the sponges -- Four ...

The fundamental structures underlying learning and memory in the brains of invertebrates as different as a fruit fly and an earthworm are remarkably similar, according to neuroscientists. It turns out ...

A brief history and some fundamentals / Craig M. Young -- Phylum Porifera / Manuel Maldonado and Patricia R. Bergquist -- Phylum Cnidaria / Vicki J. Martin and Ron Koss -- Phylum Ctenophora / Mark Q.

When I recently posted photos of some tunicates (common marine animals of the coast) encrusting an old lobster trap to my website, a former student commented "kinda looks like someone sneezed, Doctor.

At the end of the semester in the advanced invertebrate zoology course I took, my rather dry, boring professor made the only joke I remember him ever uttering. We had just finished the phylum ...

Biologists have considered nearly every major taxon of animals as the key starting point for the evolution of vertebrates. We survey these ideas, many of which are no longer tenable in the light of ...

Invertebrates dominate the animal kingdom, making up 97 percent of all creatures. These animals, lacking a backbone, display incredible diversity. From microscopic mites to giant squid, their ...

Invertebrates, like vertebrates, are classed by body form, life cycle, and evolutionary history. Invertebrates are animals that lack a backbone or bony skeleton.They vary in size from microscopic ...