As this offshore natural-gas platform burns off one greenhouse gas — methane — it produces another, carbon dioxide.

Showy blue and green frills are the only visible parts of this giant clam. It traps itself for life inside the rocky mass of a reef by a process that’s been misunderstood for decades.

Some bacteria can use antibiotic drugs as fuel. Now, scientists have figured out how they do it.

After a disaster, search-and-rescue dogs use their amazing sense of smell to search for trapped people. But could an e-nose do their job for them? This pooch is looking over its shoulder.