The Ring of Fire is a string of volcanoes and sites of seismic activity (earthquakes) around edges of Pacific Ocean. The ...

The rainforest has many layers There are thousands of tree species in the Amazon rainforest, many of which grow to between 80 and 100 feet tall, developing huge networks of branches that make up the ...

Researchers have mapped the distribution of a jellyfish subspecies and found that creatures which lack a distinctive "knob" are somehow prevented from leaving the Arctic.