Scientists discovered the new, persistent structure in one of two radiation belts surrounding Earth. NASA's twin Van Allen Probes spacecraft spotted the pattern, which that resembles slanted zebra ...

Zebras vary in size depending on the species. Grévy’s zebra is the largest. It is about 4.10 to 5.25 feet at shoulder height and weighs 776 to 992 pounds. The mountain zebra is slightly smaller ...

Social structure. While other zebra species form long-lasting herds, Grevy’s zebras tend to be more fluid with their social interactions. Females will often band together in loose-knit groups, ...