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Gr 4-7 While chondrichthyans, due to their cartilaginous nature, have been less likely to present as many fossilized remains as their cousins, the bony fishes, enough evidence has been recovered to open fascinating windows into their evolutions (and extinctions) over the last 375 million years. Bradley has sifted through this ancient record and allows readers a peek at some strange creatures. Consider "Stethacanthus", displayer of a surfboard-shaped dorsal fin bristling with too...Log In or Sign Up to Read More

Sharks have been around for a very large part of Earth's history, in many shapes and sizes and all over the planet's oceans. Bradley's chronologic tour of extinct shark species employs a smart design and sharp graphics to tie together the encyclopedia-like entries. Each two-page layout includes one or two profiles of sharks; an additional text ...Log In or Sign Up to Read More

Bradley's chronologic tour of extinct shark species employs a smart design and sharp graphics to tie together the encyclopedia-like entries. Each ...Log In or Sign Up to Read More