10.Most of the main groups of the animal kingdom—arthropods, brachiopods, coelenterates, echinoderms, molluscs and even chordates, the branch from which vertebrates went on to develop—are found in the fossil beds of the Cambrian.
11.Several introductions of damaging insects have been attacked successfully by further introductions of critters that eat them—though this has not worked so well for voracious introduced molluscs called giant African land snails.
12.Their journey from small, passive molluscs to sleek, voracious predators took hundreds of millions of years of trial and error -- from developing shells to survive, to finally learning to thrive without them.
13.That encourages the growth of planktonic algae, and thus of everything that feeds on such plankton, or feeds on what feeds on them, including jellyfish, and also various molluscs and crustacea that loggerheads enjoy as an appetiser.
14.But by the late Cambrian, one mollusc known as Plectronoceras had acquired a couple of adaptations that marked the beginning of a brand new form of transportation -- and a whole new kind of mollusk.
15.In early fish-like vertebrates more than 500 million years ago; in a common ancestor of arthropods, such as insects, spiders and crustaceans, at around the same time; and then in the cephalopod molluscs around 300 million years ago.
16.His undoing began when a committee of the Royal Society-a committee of which he happened to be chairman decided to award him its highest honor, the Royal Medal, for a paper he had written on an extinct mollusc called the belemnite.