Quote of the day

Joel Allen (1877:139), quoted in Virginie Millien and colleagues (2006):

The present more or less unstable condition of the circumstances surrounding organic beings, together with the known mutations of climate our planet has undergone in past geological ages, points clearly to the agency of physical conditions as one of the chief factors in the evolution of new forms of life.

References:

Allen JA. 1877. The influence of physical conditions in the genesis of species. Radical Review 1:108-140.

Millien V, Lyons SK, Olson L, Smith FA, Wilson AB, Yom-Tov Y. 2006. Ecotypic variation in the context of global climate change: revisiting the rules. Ecology Letters 9:853-869. doi:10.1111/j.1461-0248.2006.00928.x