When trying to understand early human migration, timing is everything. We know that humans migrated from the African savannahs through Asia and down into Australia, and this journey is seen as one of our greatest human accomplishments. But we still don't know exactly when we... click to read more

Each of us carries intestinal gardens, where microbes process food for our own consumption. We evolved to benefit from this, but as our guests are selfish single-cell creatures, tense diplomacy was always needed. Since these bacterial communities in our gut play surprisingly large roles in... click to read more

A warming Arctic is causing reductions in sea ice thickness and increasing its drift speed. Compositional and dynamic changes in sea ice could have impacts on the ability of ice-dependent vertebrates to acquire and amass energy needed for maintenance, growth, and reproduction. Knowledge of how... click to read more

A fundamental and often neglected feature of life on Earth is that all organisms live immersed in fluids. In the case of animals that fly or swim, locomotion is, therefore, a combination of their own movement and the displacements of the surrounding air or water.... click to read more

Ours is a world dominated by microbes. Diverse microbial communities colonize just about any available space, even deep within our bodies' cavities. Remarkably, every human being carries as many bacterial as human cells, leading us to question the very meaning of what constitutes a human.... click to read more