These 12,000-Year-Old Fish Hooks Are the Oldest to Ever Be Discovered in a Grave

Photograph by Sofía Samper Carro. "Fishing in life and death: Pleistocene fish-hooks from a burial context on Alor Island, Indonesia," Antiquity, Sue O’Connor, Mahirta, Sofía C. Samper Carro, Stuart Hawkin, Shimona Kealy, Julien Louys and Rachel Wood.
Photograph by Sofía Samper Carro. "Fishing in life and death: Pleistocene fish-hooks from a burial context on Alor Island, Indonesia," Antiquity, Sue O’Connor, Mahirta, Sofía C. Samper Carro, Stuart Hawkin, Shimona Kealy, Julien Louys and Rachel Wood.

Prehistoric people who lived on Indonesia’s rugged and remote Alor Island held fishing in such high importance that even the dead were supplied with equipment for snagging a fresh catch. While digging at an archaeological site on the island’s south coast in 2014, scientists found a group of ancient fish hooks, which were buried with an adult human around 12,000 years ago. They’re the oldest fishhooks to ever be discovered in a grave, according to a new report published in the journal Antiquity.

Archaeologists from Australian National University found the partial skeleton while excavating an early rock shelter on Alor’s west coast. The bones—which appeared to belong to a female—were interred with five circular one-piece fish hooks made from sea snail shell. Also found was a perforated bivalve shell, buried beneath the skeleton’s chin. It’s unclear what purpose this artifact served, but experts did note that it had been smoothed and polished, and appeared to have once been dyed red.

Ancient fish hooks discovered in Indonesia by archaeologists from Australian National University
Rotating fish hooks found with the burial

Photograph by Sofía Samper Carro. "Fishing in life and death: Pleistocene fish-hooks from a burial context on AlorIsland, Indonesia," Antiquity, Sue O’Connor, Mahirta, Sofía C. Samper Carro, Stuart Hawkin, Shimona Kealy, Julien Louys, and Rachel Wood.

Prehistoric fish hooks found in Indonesia by archaeologists from Australian National University.
Circular rotating fish hooks found with the burial

Photograph by Sofía Samper Carro. "Fishing in life and death: Pleistocene fish-hooks from a burial context on AlorIsland, Indonesia," Antiquity, Sue O’Connor, Mahirta, Sofía C. Samper Carro, Stuart Hawkin, Shimona Kealy, Julien Louys and Rachel Wood.

Researchers used radiocarbon dating to determine the age of charcoal samples found near the burial ground. From this, they determined that the fish hooks and human remains were buried during the Pleistocene Epoch.

Alor Island, the largest island in the volcanic Alor Archipelago, is rocky and lacks a variety of plant life and protein sources. For these reasons, fish was likely an important staple food for ancient residents, and the act of fishing may have also been considered cosmologically important, archaeologists say.

The burial on Alor Island "represents the earliest-known example of a culture for whom fishing was clearly an important activity among both the living and the dead,” the study's authors wrote. Additionally, if the skeleton indeed belonged to a woman (the bones themselves haven't yet been conclusively identified), the hooks might suggest that women in ancient Alor were tasked with hook-and-line fishing, just like those in ancient Australia.

Archaeologists have identified prehistoric fishing hooks at sites around the world. They range from 23,000-year-old hooks, discovered on Japan’s Okinawa Island (the world’s oldest-known fishing implements), to slate hooks from Siberia’s late Mesolithic period (the second-oldest hooks ever found in a gravesite).

The fishing hooks discovered on Alor are circular instead of J-shaped, and resemble other ancient hooks that were once used in countries like Japan, Australia, Mexico, and Chile. Some experts have suggested that these similarities in technology were the result of migration, cultural contact, or even from fish hooks left in migrating tuna. The researchers at Australian National University argue against this theory, hypothesizing that the similarly shaped hooks are instead evidence of “convergent cultural evolution in technology” around the globe.

This Outdoor Lantern Will Keep Mosquitoes Away—No Bug Spray Necessary

Thermacell, Amazon
Thermacell, Amazon

With summer comes outdoor activities, and with those activities come mosquito bites. If you're one of the unlucky people who seem to attract the insects, you may be tempted to lock yourself inside for the rest of the season. But you don't have to choose between comfort and having a cocktail on the porch, because this lamp from Thermacell ($25) keeps outdoor spaces mosquito-free without the mess of bug spray.

The device looks like an ordinary lantern you would display on a patio, but it works like bug repellent. When it's turned on, a fuel cartridge in the center provides the heat needed to activate a repellent mat on top of the lamp. Once activated, the repellent in the mat creates a 15-by-15-foot bubble of protection that repels any mosquitos nearby, making it a great option for camping trips, days by the pool, and backyard barbecues.

Mosquito repellent lantern.

Unlike some other mosquito repellents, this lantern is clean, safe, and scent-free. It also provides light like a real lamp, so you can keep pests away without ruining your backyard's ambience.

The Thermacell mosquito repellent lantern is now available on Amazon. If you've already suffered your first mosquito bites of the summer, here's some insight into why that itch can be so excruciating.

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

This Football-Sized Fossil Egg is the First Found in Antarctica, and It May Have Belonged to a Mosasaur

An artist’s interpretation of the birth of a baby mosasaur.
An artist’s interpretation of the birth of a baby mosasaur.
Francisco Hueichaleo, 2020

In 2011, Chilean scientists discovered a football-sized fossil off the coast of Seymour Island, near the northern tip of the Antarctic Peninsula. Though they didn’t know what it was at the time—and simply called it “The Thing”—new research shows that not only is it the first fossil egg ever found in Antarctica, it’s also the largest soft-shelled egg ever found anywhere.

In a study published today in the science journal Nature, researchers from the University of Texas at Austin and the University of Chile dated the nearshore rock formation where the fossil egg was found to be from the Late Cretaceous period—about 68 million years ago—and measured the fossil itself to be roughly 11.4 inches by 7.9 inches (29 centimeters by 20 centimeters). This empty, partially collapsed egg is smaller only than that of the elephant bird, an extinct, flightless species from Madagascar whose eggs averaged about 12 inches by 8 inches.

giant fossil egg from antarctica
A side view of the fossil egg.
Legendre et al. (2020)

But beyond their size, the eggs don’t have much in common; an elephant bird egg is about five times thicker than this fossil egg, and its hard shell has distinct pores and a prismatic layer that the fossil egg lacks. In other words, an elephant bird egg resembles a giant chicken egg. (And giant is no exaggeration—an elephant bird egg could hold the contents of about 150 chicken eggs.)

elephant bird egg next to a chicken egg
An elephant bird egg next to a chicken egg (and a man's head), to put it in perspective.
Oli Scarff/Getty Images

With its soft shell and oblong shape, the new fossil egg, from the new taxon Antarcticoolithus bradyi, is more similar to a lizard or snake egg, which suggests it could’ve been laid by a large reptile. To test that theory, the researchers compared it to the egg traits of 259 species of lepidosaurs—a subclass of reptile that includes snakes and lizards—and surmised that the egg-layer may have been a marine reptile that measured roughly 23 feet (7 meters) or longer.

The researchers believe this mystery mother might have been a mosasaur, a type of large marine lepidosaur whose remains have also been discovered in the area. During the Late Cretaceous period, mosasaurs were among the most fearsome predators in the ocean. They had strong flippers and sharp teeth, and some species grew as long as 50 feet (though that’s still a good 10 feet shorter than the fictional mosasaur depicted in 2015’s Jurassic World). Fossilized contents of their stomachs show they feasted on a variety of wildlife, including fish, seabirds, turtles, plesiosaurs, and more—one mosasaur had even eaten a few other mosasaurs. And although mosasaurs did live in Antarctica, the continent during the Late Cretaceous period looked nothing like its current frigid landscape.

“Antarctica was rich in life,” Dr. Julia Clarke, a professor in UT Austin’s Department of Geological Sciences and co-author of the study, tells Mental Floss. “Temperate forests diverse in plant species covered exposed land. Giant marine reptiles and much smaller coiled ammonites and relatives of living birds hunted in the seas, while on land, mid-sized non-avian dinosaurs ambled.”

mosasaur birth and egg
The egg looks a lot smaller when you compare it to a full-grown mosasaur.
Francisco Hueichaleo, 2020

Since scientists have uncovered the remains of mosasaurs and plesiosaurs of all ages in the rock formation where the fossil egg was found, some think it may have been a popular place for creatures to hatch and raise their young.

“Many authors have hypothesized that this was sort of a nursery site with shallow protected water, a cove environment where the young ones would have had a quiet setting to grow up,” Lucas Legendre, a postdoctoral researcher and the lead author of the study, said in a press release.

If the fossil egg really did belong to a mosasaur, it could alter our understanding of how mosasaurs gave birth. In South Dakota during the 1990s, scientists unearthed the skeleton of a lizard-like mosasaur called a Plioplatecarpus with five unborn offspring preserved in its abdomen. Because they weren’t in eggs, it was generally thought that mosasaurs gave birth to live young. The existence of Antarcticoolithus bradyi, however, suggests the possibility that some mosasaurs laid soft-shelled eggs that hatched immediately after.

According to Clarke, the discovery of the fossil egg is especially exciting because it demonstrates “how much we have yet to learn about the evolution of eggs, from the first egg-layers that moved away from water to the immense diversity of eggs and reproductive strategies we see today.”