Like the other members of the octopus family, though, they use special pigment cells in their skin to change colors and textures, and can blend in with even the most intricately patterned corals ...

The first corals appeared, though other reef-building organisms were already present. Giant reptiles such as the dolphin-shaped ichthyosaurs and the long-necked and paddle-finned plesiosaurs ...

The Walt Disney Company revealed its Earth Month programming plans with a campaign led by National Geographic to spotlight global conservation efforts. Throughout April, the ourHOME campaign will ...