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Vertebrates comprise the vast majority of species for which an institution's animal care facility (ACF) bears responsibility. Occasionally, though, species without backbones are more suited to a ...

Ichthyology is the branch of zoology devoted to the study of fish, including: bony fish, Osteichthyes; cartilaginous fish, Chondrichthyes; and jawless fish, Agnatha. The discipline can include the ...