please drop some rad megalodon facts my sweet dude
Reaching lengths of up to 60 feet and an estimated maximum weight of over 60 tons (that’s 20x as heavy as todays Great White), the Megalodon is the largest known predator in Earth’s history. The only existing marine animal that’s larger is the blue whale, which can grow as big as 100 feet and weigh more than 150 tons.
While most adult Megalodon teeth fell into the 4-5” size range, a few massive, fossil teeth have been found in excess of 7”. The largest verifiable Megalodon tooth is a 7.48” tooth found near Ocucaje, Peru.
Contrary to popular belief, fossil evidence shows that the Megalodon is NOT in fact closely related to the Great White Shark.
Computer models estimate the Megalodon’s bite force between 24,000 to 40,000 pounds (10,900 to 18,100 kilograms), This is 6-10 times that of the Great White shark and modern crocodiles, This is also 2-3 times that of the estimated bite force of 12,800 pounds for T-Rex and the large Mosasaurs.
According to accounts dating back to the Renaissance, massive triangular teeth were often found buried in rocky mountains and were believed to be the fossilized tongues of dragons and snakes. It wasn’t until 1667 that they were recognized by Danish naturalist Nicolaus Steno as shark teeth.
Megalodon pups were born an estimated 2 to 4 meters in size (6.6.ft – 13.1ft) at birth.
There are three main theories on how Megalodon went extinct:
Oceanic Cooling: This first theory suggests that accelerated changes in global circulation caused by the closure of the Central American Seaway (along with possible other factors such as Pliocene climate) set the stage for the build of of glaciers in the northern hemisphere consequently creating Ice Ages which cooled the oceans substantially. The Megalodon preferred warmer water so this may have impacted their resulted and eventual demise.
Decline in Food Supply: By the end of the Miocene many species that the Megalodon relied on for sustenance became extinct. Also the closure of the Central American Seaway caused further extinctions as well as cause faunal redistribution. This resulted in decreased diversity and abundance of great whales suggesting that most surviving species headed towards polar regions.
New Competition: This last theory is one of the least popular. It suggests that the emergence of raptorial killer whales contributed to the demise of the Megalodon. Fossil records show that the ancient whales could survive the new cold climates thus outlasting the mega tooth sharks.
“Megalodon” originates from two Greek words — megas, signifying “big”, and odont, signifying “tooth”.
Before anyone gets too excited, we have a post here explaining how it’s not possible that Megalodon is still alive,
Technology then and now
NASA astronaut Peggy Whitson achieved a new milestone at the International Space Station on Sunday, when she became the first woman to command the ISS twice.
Whitson is replacing astronaut Robert Shane Kimbrough, who will depart the space station Monday.
“Up here we don’t wear shoes, but Shane is leaving me some pretty big socks to fill,” Whitson said during a live broadcast as she assumed her new position. Read more. (4/9/2017 3:40 PM)
DIY organization Autonomous Space Agency Network just sent a Trump protest 90,000 feet in the air. And it didn’t even cost that much to do it.
Women scientists made up 25% of the Pluto fly-by New Horizon team. Make sure you share this, because erasing women’s achievements in science and history is a tradition. Happens every day.
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http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20150712
Seven Earth-like planets have been found orbiting a sun not too far — in space terms, at least — from our own.
NASA announced Wednesday that the planets resemble Earth in composition and spacing from their star, which means their conditions might be favorable to liquid water and life, Time reported.
“The planets form a very compact system,” Michaël Gillon of Belgium’s University of Liège, said in a teleconference, according to Time. “They are very close to their star and are reminiscent of the system of moons that orbit Jupiter. They could have liquid water and life.”
Astronomers studied the star, Trappist-1 — which, at 39 light years away from Earth, is considered a relative neighbor — for six years, using telescopes located all over the world, plus the Spitzer Space Telescope. Read more (2/22/17 2:04 PM)
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Stardate: 2258.42...or, uh, 4... Whatever. Life is weird, at least we've got science.
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