Neurophysiological analysis of habituation in various mollusks—for example, in the sea snail Aplysia has confirmed that habituation need not depend on changes in the activity of sensory or motor neurons.
In some mollusks, for example, one giant sperm carries hundreds of other sperm through the reproductive tract of the female, dropping off sperm cells along the way.
The mollusks, for example, usually the most diverse group, account for only about 15% of total biodiversity, and the other major groups such as macroalgae, sponges, cnidarians, and polychaetes account for less than 20% of the total.
TBT was correlated to endocrine disturbances in mollusks (for example, Alzieu et al. 1986 , 1989 Bryan et al. 1986 , 1987 Gibbs et al. 1986 , 1988, and this discovery led to restrictions in EU, USA, Canada, Australia, and New Zealand (Antizar-Ladislao 2008 and references therein; Dafforn et al 2011).
For example, mollusks will suppress mating in order to feed (Davis, 1979).
A number of studies conducted on mollusks, mostly on mussels, for example, Sanders and Martin [ 41], reported elevated levels of HSP60 and HSP70 in mussels and fish tissue collected from polluted areas.
Inevitably, given the limited number of active taxonomists in the region, certain taxa (for example, fish, mollusks, crustaceans, polychaetes) have received far more attention than others.
Inevitably, given the limited number of active taxonomists within the Caribbean region, while some taxa have received much attention (for example, fish, mollusks, corals, sponges, and some crustacean groups), many taxa have been completely neglected (most of the meiofaunal groups, the bacteria, and most of the protoctista).
"Oyster," for example, consists of mollusks on ice, daubed with uni, cucumber purée, and blazing-red kimchi.
Neurons with modalities clearly equivalent to those of visceral sensory neurons in vertebrates (which monitor taste or blood pressure for example) are not described to our knowledge in mollusks, precluding exploration of this broad neuronal identity.
For example, shelter size constrains body size in mollusk shell-dwelling cichlids (Schütz and Taborsky 2005; Takahashi et al. 2009).
