Visualizing the solar system in its totality requires one to conjure a lot of spinning bodies moving in synchrony. But getting a sense of those objects’ scale is just as important for developing a ...

If Earth had the same diameter as the head of a pushpin, how much would all of the other celestial bodies in the universe need to shrink to scale proportionally? It’s a fun, ridiculous question and ...

The small size of Early Triassic marine organisms has important implications for the ecological and environmental pressures operating during and after the end-Permian mass extinction. However, this ...

Evolution, Vol. 52, No. 6 (Dec., 1998), pp. 1821-1833 (13 pages) Female-biased sexual size dimorphism is uncommon among vertebrates and traditionally has been attributed to asymmetric selective ...