The growth of cell colonies is determined by the migration and proliferation of the individual cells. This is often modeled with the Fisher–Kolmogorov (FK) equation, which assumes that cells diffuse independently from each other, but stop to proliferate when their density reaches a critial limit. Ho... 

Emperor penguins (Aptenodytes forsteri) breed during the harsh Antarctic winter. During mating and breeding period (in total up to four months), the males must fast, while also incubating the egg during the latter. To survive and breed successfully, they must conserve their energy. Through evolution... 

Automated image based tracking is widely used to investigate collective interactions in a variety of biological systems. Applied to diverse environments, ranging from cell to animal colonies, it provides insight into biological processes like cancer metastasis, immunological response, and social str... 

Emperor penguins are able to maintain the tight huddle that protects them from the harsh conditions of an Antarctic winter with stop-and-go movements like cars in a traffic jam. By using a mathematical model that computes the positions, movements and interactions of individual penguins in a huddle, ...