A mother cichlid fish protects her young by keeping them in her mouth. But a parasite has evolved a way to use her own defenses against her. See Giant Fish Throw Biologist video.nationalgeographic.com See All National Geographic Videos video.nationalgeographic.com
(less)
A doomsday vault built to withstand an earthquake or nuclear strike is ready for operation deep in the permafrost of an Arctic mountain, where it will protect millions of seeds from man-made and natural disasters. (Feb. 26)
(less)
Safe Search Filter is ON.
Truveo understands that some content may not be appropriate for all users.
We provide a Safe Search Filter so that you can choose the content best suited to your personal interest.
Turning OFF the Safe Search Filter may display content that is only suitable for viewers over 18 years of age.
Click the button below if you are over 18 and would like to turn OFF the Safe Search Filter.