Shell colour variation in mollusks is a multifaceted trait governed by complex genetic mechanisms that orchestrate pigment biosynthesis, tissue differentiation and biomineralisation. Studies indicate ...

Variation in land-snail shell form has been extensively documented, but its causes are poorly understood. For no character are there general rules relating shell form to environmental characteristics, ...

The structure of the shell of the pelecypod Mytilus californianus varies with the temperature of its formation. This species has a shell composed of four principal layers, the periostracum (entirely ...

NASHVILLE. A new website to help customers make sense of the next generation of diesel engine oils and the introduction of an engine coolant variation were the main topics of a Fleet Owner booth visit ...