Our Planet, the incredible new documentary series narrated by Sir David Attenborough, explores the beauty of life on Earth and highlights the threats that we pose to it. In the coastal seas episode, ...

Limestone, made from calcium carbonate, takes millions of years to form. These sedimentary rocks are born from the decay and ...

A massive sea creature has been found in the Pacific Ocean near Malaulalo, Solomon Islands. The creature stretches over 100 feet wide and is 300 years old.

Coral reefs are very much the rainforests of ... This process converts the reef into hard, dense limestone, a material frequently used as building material. Corals which only formed in the past ...

Whatever you call it, visitors agree: This coral-limestone building is magnificent inside and out. Showcasing elements of Gothic, Baroque and plateresque architectural styles, the Catedral Primada ...

They left behind petroglyphs, which you can still see today on the marine coral limestone walls. The caves later provided shelter to escaped slaves, who lived in them for months at a time.