Lotka–Volterra equations
Videos
The Lotka–Volterra equations, also known as the Lotka–Volterra predator–prey model, are a pair of first-order nonlinear differential equations, frequently used to describe the dynamics of biological s
Numbers of snowshoe hare (yellow, background) and Canada lynx (black line, foreground) furs sold to the Hudson's Bay Company. Canada lynxes eat snowshoe hares.
Fox
Videos
Foxes are small-to-medium-sized omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull; upright, triangular ears; a pointed, slightly upturned snout; and a l
Lotka–Volterra equations
…prey (for example, the number of rabbits per square kilometre); the variable y is the population density of some predator (for example, the number of foxes per square kilometre); d y d t and d x d t represent the instantaneous growth rates of the two populations…
Vulpes vulpes ssp fulvus
Comparative illustration of skulls of a true fox (left) and gray fox (right), with differing temporal ridges and subangular lobes indicated
Arctic fox curled up in snow
Two young foxes play in the snow in southern Sweden.