Random walk is a fundamental concept with applications ranging from quantum physics to
econometrics. Remarkably, one specific model of random walks appears to be ubiquitous …

With the influx of complex and detailed tracking data gathered from electronic tracking
devices, the analysis of animal movement data has recently emerged as a cottage industry …

Microglia, the brain's immune cells, maintain homeostasis and sense pathological changes
by continuously surveying the parenchyma with highly motile large processes. Here, we …

Chemokines have a central role in regulating processes essential to the immune function of
T cells,,, such as their migration within lymphoid tissues and targeting of pathogens in sites …

Each year ecotoxicological problems become increasingly complex and encompass
broader spatial and temporal scales. Our practical understanding must evolve accordingly to …

Biological invasions are increasingly commonplace, driven primarily by the accidental
human transport of exotic species via ship** or trade. The economic impacts can be …

When searching for food, many organisms adopt a superdiffusive, scale-free movement
pattern called a Lévy walk, which is considered optimal when foraging for heterogeneously …

We demonstrate the non-ergodicity of a simple Markovian stochastic process with space-
dependent diffusion coefficient D (x). For power-law forms D (x)≃| x| α, this process yields …

In nature, most bacteria live in surface-attached sedentary communities known as biofilms.
Biofilms are often studied with respect to bacterial interactions. Many cells inhabiting biofilms …

Human crowds provide paradigmatic examples of collective behavior emerging through self-
organization. Understanding their dynamics is crucial to help manage mass events and daily …