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Hace 2 días · The traditional view was that lophophorates were a mix of protostome and deuterostome features. Research from the 1970s onwards suggested they were deuterostomes, because of some features that were thought characteristic of deuterostomes: a three-part coelom; radial rather than spiral cleavage in the development of the embryo; [53 ...
Hace 3 días · Hence forming the mouth via a deuterostome-like process does not imply that brachiopods are affiliated with deuterostomes.
Hace 3 días · Ctenophora ( / təˈnɒfərə / tə-NOF-ər-ə; sg.: ctenophore / ˈtɛnəfɔːr, ˈtiːnə -/ TEN-ə-for, TEE-nə-; from Ancient Greek κτείς (kteis) 'comb', and φέρω (pherō) 'to carry') [6] comprise a phylum of marine invertebrates, commonly known as comb jellies, that inhabit sea waters worldwide.
Hace 4 días · Ascidians (Phylum: Chordata, Class: Ascidiacea), or sea squirts, are the largest and most diverse class of the sub-phylum Tunicata (also known as Urochordata). They comprise approximately 3000 described species found in all marine habitats from shallow water to the deep sea.
Hace 4 días · species of lemurs. Lemurs (suborder Strepsirrhini). primate, in zoology, any mammal of the group that includes the lemurs, lorises, tarsiers, monkeys, apes, and humans. The order Primates, including more than 500 species, is the third most diverse order of mammals, after rodents (Rodentia) and bats (Chiroptera).
Hace 4 días · Monarch butterfly. A composite of five different views of a monarch butterfly emerging from its chrysalis. It shows the emerging monarch from the first opening of the chrysalis to the final unfolding and drying of its wings. (more)
Hace 1 día · Browse the archive of articles on Nature. Isabelle Côté and three other female marine scientists competed in a row across the Atlantic ocean, making the trip in 38 days to raise money for ocean ...
