by AMNH on
Butterflies that belong to the Heliconius genus, known colloquially as longwings, have discovered the secret to butterfly longevity. Like most members of the order Lepidoptera, longwings sip nectar from flowers using a straw-like organ called a proboscis. What distinguishes them from fellow butterflies — and moths — is that longwings can broaden their diet beyond these sweet liquids — which, in turn, is thought to extend their life.
That’s because Heliconius butterflies are able to ingest pollen by secreting enzymes onto their proboscides. When these enzymes mix with pollen grains, they create a protein-rich liquid that the butterfly can absorb. Longwings spend hours collecting and processing pollen grains and depositing them at other stops along the way. The plants pay them back, big time: the amino acids found in pollen are thought to increase egg production and lifespan up to eight months, making longwings one of the longest-living groups of butterflies in the world.
by AMNH on
The first major update of the American Museum of Natural History: Cosmic Discoveries iPhone App was released on February 15 as part of an ongoing effort to create a gallery of the universe that fits in the palm of your hand. The updated app features five new chapters, which combine fascinating images with in-depth descriptions of astrophysical phenomena, the people who discovered them, and the technology that makes it all possible.
The new stories describe the extremes of star formation (“Massive Stars” and “Brown Dwarfs”), galaxies like our own Milky Way (“Spiral Galaxies”) and the dense clumps of stars that swarm around them (“Globular Clusters”), as well as astronomical phenomena caused by runaway thermonuclear explosions (innocuously called “Novae”).
Download the app today in order to automatically be notified about new updates via the App Store. More updates will be released every few months.
by AMNH on
Anyone who has listened to jazz — a uniquely American musical form that is fundamentally interpretive, improvisational and creative — will describe the way it seems to stimulate the mind. And in recent years, new scientific research has shown that improvisation really does activate the parts of the brain that enhance self-expression and lower inhibitions.
On Saturday, February 19, from 12:30 to 5 pm, the American Museum of Natural History will honor jazz’s trailblazing artists and musicians and highlight the ways jazz can stimulate and enhance the brain with a special Global Weekends event, Saluting Our Jazz Elders, which will feature performances by celebrated jazz vocalist Melba Joyce, New Amsterdam Music Association, Joey Morant, and McCollough Sons of Thunder, as well as conversations throughout the day with Robert O’Meally, co-founder of the Center for Jazz Studies at Columbia University about the connections between jazz, the brain, and education.
by AMNH on
Stephen C. Quinn, senior project manager in the Museum’s Department of Exhibition, recently traveled to the eastern Congo basin to visit the exact site depicted in the Akeley Hall of African Mammals’ mountain gorilla diorama which is based on paintings, photographs, and specimens collected in the field by explorer and taxidermist Carl Akeley and his team in 1921 and 1926.
Like the artists on Akeley’s 1926 expedition, Quinn used field sketches and paintings to document the area’s flora and fauna, recording the changes that have taken place and reinforcing the important role artists play in habitat conservation and environmental education. In this eight-minute highlight video from a recent talk at the Museum, Quinn shares finished works, including a panoramic plein air painting.
Watch the video, which includes footage from the field, here:
by AMNH on
Did you know that dinosaur bones contain growth rings, like the rings in tree trunks, which reveal yearly periods of rapid and slow growth? Or that sauropods, the largest known dinosaurs, probably survived on a diet of plants? This is your chance to learn about dinosaurs — and to tweet all about it!
Join us on Thursday, March 3, at 6 pm for the Museum’s next tweetup, which will focus on some of the most fascinating animals ever to walk the Earth. Learn about dinosaurs, meet paleontologists, go behind the scenes to see how fossils are stored, and get a sneak preview of The World’s Largest Dinosaurs, a new exhibition that opens April 16. Enjoy refreshments in the Museum’s famous fossil halls and meet other @AMNH followers and staff.
Visit the registration page to sign up today. The Museum will notify all selected participants on February 23. The Museum’s January tweetup focused on Brain: The Inside Story. To learn more, check out these photos or read this post.