Animals: Watch a rare lion attack, fluorescent flying squirrels, and more

Plus: Rare video of a half-male, half-female bird. [These Sharks Eat Plants]( [VIEW ONLINE]( [These Sharks Eat Plants]( [National Geographic]( [National Geographic]( In this edition: See a rare bird that is both sexes at once, peak inside the world of fluorescent flying squirrels, learn about leopard groups—and much more. . [Strange Bird]( [Rare half-male, half-female cardinal spotted in Pennsylvania]( The anomaly is known as a bilateral gynandromorph. Learn what causes this phenomenon—and why this bird may be able to reproduce. [Check it out]( SHARE [FB]( [T]( . [Bad Pets]( [Don’t be fooled by social media—wild animals make terrible pets]( Exotic pets might seem appealing, but the reality is often smelly, difficult, and sometimes dangerous. [Learn More]( . [Hidden Glow]( [Flying squirrels secretly glow pink, thanks to fluorescence]( Drab by day, North America’s three species of flying squirrels are all fluorescent. But why? [Glow On]( . [Back Up]( [Lions cling to giraffe's back in risky attack]( In this rare video, lions hitch a ride to a large male giraffe, leading to a five-hour standoff. [Watch It]( SHARE [F]( [T]( . [species stories]( [Whale sharks]( The whale shark’s genus, Rhincodon, derives from the Greek words for "rasp" and "tooth." These densely-packed mouth combs look like a rasp, but are used to trap plankton. This filter-feeding ability is similar to that of many whales. [Float On]( DID YOU KNOW? A group of [leopards]( is known as a "leap." Many of these group names are not enshrined in the Oxford English Dictionary, the language's most important repository of words, but "leap" is—after being coined in the 1400s. Oxford English Dictionary [Email Icon]( [Sign up for more National Geographic newsletters]( [Shop]( [Donate]( [Subscribe]( [Travel]( [READ OUR LATEST STORIES]( [SHOP]( [DONATE]( [SUBSCRIBE]( [TRAVEL]( [FB]( [Twitter]( [IG]( You are receiving this email because you elected to receive marketing communications from National Geographic under the terms of our [Privacy Policy](. Click here to [unsubscribe.]( If you reside in the EU/European Economic Area and wish to exercise all other data subject rights, [click here](. National Geographic | 1145 17th Street N.W. | Washington, D.C. 20036 Copyright © 2019 National Geographic Partners, LLC. All rights reserved. {LITMUS TRACKING PIXEL}