Related topics: algae

Early life on Earth limited by enzyme

The enzyme-nitrogenase-can be traced back to the universal common ancestor of all cells more than four billion years ago.

Keeping your dog safe from toxic blue-green algae

When we see green, scummy water, we know better than to drink it or even swim in it. But the same is not true for many dogs, and that green scum could be a toxic blue-green algae bloom, which can be fatal to animals.