Seeley, R. H. 1986. Intense natural selection caused a rapid morphological transition in a living marine snail. The intertidal snail, Littorina obtusata , lives in New England. The change in shell shape is attributed to selection by the predatory crab, Carcinus maenas , which expanded its range into northern New England about 1900. This study provides an example of rapid morphological change not involving speciation.
Fossil bird shakes evolutionary hypotheses.
This news note reports on the find of two crow-sized birds in the Triassic Dockum Formation in Texas. The new fossil find is said to have more modern bird-like features than Archeopteryx , but also has several reptilian affinities. The limits of science. Oxford University Press, Oxford. This book is not at all what its title implies.