It's Trilobite Tuesday! Trilobites, while commonly seen fossilized as single individuals, were highly social animals—gathering together to mate, molt, or feed. On occasion, fossils are unearthed featuring multiple trilobites on a single slab, like these ornate 1-in- (2.5-cm-) long Devonian lichids.

Meet the greater naked bat. Glands on this mammal's neck produce unpleasant-smelling secretions—the scent of which has been compared to “stale socks drenched in engine oil.” It can be found in colonies of ~20,000 individuals. Photo: Vatcharavee Sriprasertsil, CC BY-NC 4.0, iNaturalist

Today’s Exhibit of the Day? The Museum’s giant sequoia. When this tree was felled by a lumber company in 1891 (which is now illegal), it was 331 ft (100.1 m) tall. In 1912, this sequoia slice was cut to fit through the Museum. Visitors today can still spot the seams where it was put back together.

It's Fossil Friday! Meet Eryops megacephalus. This critter, which lived some 280 million years ago during the Early Permian, was among the most terrestrial of the early tetrapods. Spot it in the Hall of Vertebrate Origins! Plan your visit: amnh.link/4bnMbG3 Photo: © AMNH

Meet the blunt-headed burrowing frog! Also known as the balloon frog, it spends much of its time underground. During the breeding season, it comes to the surface and takes advantage of seasonal rain pools to release up to 300 eggs. Photo: Noah Kirkland, CC BY 4.0, iNaturalist

This #InternationalTigerDay, we’re remembering the Caspian tiger. This large tiger subspecies weighed ~530 lbs (240 kg). It was driven to extinction by the same factors threatening surviving tigers—human activity, including deforestation and overhunting. Photo: Wikimedia Commons, Public Domain

It's time for Trilobite Tuesday. These 2-in- (5.1-cm-) long specimens—contained in a block of limestone from the Ordovician outcrops of Tennessee—are considered Gabriceraurus trilobites. Long viewed as an unidentified species of Ceraurus, such classifications can change based on new research.

🌈 Check out the rainbow leaf beetle! Though widely distributed across Europe, this insect is seldom seen. Growing ~0.5 in (1.3 cm) in size, it feeds on plants including ivy, roses, & thyme. This beetle inhabits montane forests at elevations of ~1970 ft (600 m). Photo: Slimguy, Wikimedia Commons

This parasitic plant smells like a rotting corpse: jackal food. Unlike many plants, which use photosynthesis, this species attaches itself to host plants & siphons off their nutrients. Its flavor & texture have been compared to that of a potato. Photo: Alex Lansdowne, CC BY-NC 4.0, iNaturalist

Happy birthday to Vera Rubin, born on this day in 1928! An acclaimed scientist, Rubin's observations established the presence of dark matter in galaxies. She was elected to the National Academy of Sciences & awarded the National Medal of Science. Photo: NOIRLab, CC BY 4.0, Wikimedia Commons

Behold the common snapping turtle! This robust reptile can weigh more than 70 lbs (31.8 kg). Its diet includes birds, small mammals, fish, and aquatic vegetation. And? It can survive for up to 30 years in the wild! Photo: Jody Benedict, CC BY-NC 4.0, iNaturalist

Cheetahs don’t have stripes, or do they? When scientists first observed the "king cheetah," it was thought to be a new species. Today, we know its striped patterning is actually the result of a genetic mutation. Only a handful of these cats have ever been seen in the wild. Photo: StuPorts, iStock

On this day in 1969, Apollo 11's Neil Armstrong became the first person to walk on the Moon! The journey was an astounding achievement: Scientific results & specimens gathered by Armstrong & Buzz Aldrin on the surface fueled research long after the mission's end. Photo: NASA, PD, Wikimedia Commons

Did you know? The Museum's Apatosaurus was originally displayed with the wrong skull. Because this dino's remains were incomplete, a speculative skull (based on a different sauropod—Camarasaurus) was sculpted. As new research emerged, it was updated.

Happy #WorldSnakeDay! 🐍 We’re heading into the Museum’s Department of Herpetology to learn some interesting facts about these diverse and important reptiles.

Are you right- or left-handed? You may have something in common with this 550-million-year-old animal! 🤯 👉 Meet Spriggina—the world’s first “right-handed” animal! Long before dinosaurs, this little organism crawled along a slime-covered seafloor and preferred bending to the right.

Meet the Pacific stargazer, an ambush hunter spends most of its life buried beneath the sand. Its upturned face allows it to see even when most of its body is concealed. And? It's capable of stunning prey with electrical shocks of ~50 volts! Photo: alboertoalcala, CC BY 4.0 iNaturalist

Following the program, gather outdoors for a Manhattanhenge viewing event! Enjoy the vibrant sounds of the Williamsburg Salsa Orchestra as the city is bathed in golden evening light. Get tickets: amnh.link/4ypEmtF

Have you ever seen one of these at the beach? Also known as “sand crabs” or “sand fleas,” Pacific mole crabs migrate with the tides, feeding on plankton brought in by the waves. These critters use their back legs to get around, and they burrow backwards, too. Photo: eeowes, CC BY-NC 4.0, flickr

Ever seen the polka dot wasp moth? This insect inhabits neotropical regions in parts of South America, Central America, & North America. It can grow ~2 in (5.2 cm) long. While these insects don’t sting like true wasps, they are toxic to predators. Photo: Andrea Diaz,CC BY-NC 4.0, iNaturalist

Does the summer heat make you feel like the bald-headed uakari (Cacajao calvus)? Scientists think that the bright color of this Amazonian primate’s face may actually be an indicator of health—and that individuals with lighter faces are less desirable as mates. Photo: DC_Colombia, iStock

Did you know? There are 6000+ known species of these tiny arachnids. True to their name, jumping spiders don’t use webs to snare food. Instead they pounce on their prey. They're easily recognizable thanks to large forward-facing eyes. Photo: jeepgirlco, CC BY-NC 4.0, iNaturalist

Happy Trilobite Tuesday! Located high above the Arctic Circle, Baillie-Hamilton is an uninhabited island in northern Canada. During rare visits, paleontologists have uncovered a smattering of Silurian-age trilobites from this remote location, including specimens of the small encrinurid, Frammia.

Today’s Exhibit of the Day? It’s one of the largest amethyst geodes in the world! It's about 13 ft (4 m) tall and 9,000 lbs (4,082 kg). It was "born" when molten magma poured from the Earth’s crust some 135 million years ago. Photo: D. Finnin/© AMNH

🌈Museums are for everyone! Today, over 40 members of AMNH PRIDE, a resource group for LGBTQ+ individuals and allies within the Museum community, participated in the NYC Pride March. Happy Pride!

Step into Fossils of the Flaming Cliffs and see 12 fossil casts and 3-D prints of important fossils from the Gobi, including a nest of eggs with a tiny, just-hatched dinosaur, an extraordinary skeleton belonging to an early mammal whose lifestyle was similar to modern rodents, and more!

🌈Celebrate Pride Month with a flash of color from the Mignone Halls of Gems and Minerals! Pause the video and discover which dazzling gem matches your vibe.

It's Trilobite Tuesday! Some trilobite fossils can only be fully appreciated after skilled preparators have completed their rock-removing magic. This includes the spinose Middle Devonian genus Radiaspis from the fossil-abundant Moroccan Lagerstatte, which could grow 1.6–3.1 in- (4–8 cm-) long!

They concluded that the bones in the dinosaur’s stomach belonged to one of the many animals in the same area, not another Coelophysis. “Coelophysis was just hungry,” Nesbitt says. “It wasn’t a cannibal.” You can spot the remains of this dinosaur in the Museum’s Hall of Saurischian Dinosaurs.

While waiting for a train one night, paleontologist Sterling Nesbitt—then a doctoral student at the Museum—was looking at this cast & noticed that something was off. Back at the Museum, Nesbitt and his advisor, Curator Mark Norell, decided to take a closer look at the Museum's Coelophysis fossils.