Nature

Math, Nature

The Lotka-Volterra equations

The Lotka-Volterra equations are a pair of differential equations used to model population dynamics. They assume an idealized environment with two species—one predator and one prey—and describe how the two populations change over time. The equations were developed simultaneously by

Nature

The autumnal equinox

Here in the northern hemisphere we recently experienced the autumnal equinox, which means we saw an equal 12 hours of day and night. It also marked the beginning of fall—at least according to astronomical seasons. Meteorological seasons are different. For