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DarthMetaKnight
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11 Jun 2018, 3:38 pm

Random Facts About Walrus

- Prehistoric stem-walrus can be traced back to the middle Miocene. On of the earliest proto-walrus known to science is Imagotaria.
- Walrus will often pull themselves out of the water using their teeth.
- The origin of the word "walrus" has been lost to time, though many linguists suspect that "walrus" comes from "horse-whale".
- Walrus are predators that eat clams.
- In any group of walrus, the strongest males with the largest tusks tend to dominate.
- Walrus could be found as far south as San Francisco Bay during the last ice age.
- Walrus have very odd sleep patterns indeed. http://www.nbcnews.com/id/29616122/ns/technology_and_science-science/t/walruses-are-worlds-most-unusual-snoozers/#.Wx7dPtJzbIU


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DarthMetaKnight
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13 Jun 2018, 12:59 am

Random Facts About Sharks:

- Tiger sharks have been found with license plates in their guts. They'll eat anything!
- Some hammerhead sharks can give birth to live young without intercourse.
- The goblin shark has the ability to extend its jaws out to grab prey.
- The rarely-seen frilled shark has six visible gill slits. Most sharks have only five. This may be an ancestral trait.
- Most people who are attacked by sharks survive. Sharks don't like the taste of people.
- Thresher sharks can use their tails as whips to stun fish.
- A shark's skin is rough because it is covered in teeth.
- Sharks, on average, lose a tooth every 9 days.
- A shark's mouth teeth are connected to its gums. They are not embedded in the jawbones like our teeth.
- Most of a shark's skeleton is made of cartilage.
- A shark's muscles are attached to the underside of its skin, not its cartilaginous bones.
- Sharks have special organs which can detect the electrical auras of other animals.


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DarthMetaKnight
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13 Jun 2018, 10:43 am

The only two extant eusocial vertebrates are the naked mole rat and the Damaraland mole-rat.

It's hard to detect eusociality in the fossil record, but one can speculate.

Sometimes I wonder if eusocial multituberculates existed at any point in earth's history. Diictodon may also have been eusocial. That makes perfect sense to me, as they were basically the Permian equivalents of naked mole rats. Also, eusociality is more common in dry climates with scarce food resources. Permian Pangea was undoubtedly like this.


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DarthMetaKnight
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14 Jun 2018, 2:48 am

Just for fun, I feel like sharing some random facts about trees.

- Trees are polyphyletic. In other words, not all trees are closely related. Throughout the history of life on earth, several plants have evolve into trees separately of one another.
- The earliest trees ever were large seed ferns that evolved during the late Devonian.
- The largest tree on earth right now is Pando. Pando is a quaking aspen tree in Utah. On the surface, Pando appears to be an entire forest, but the roots of the "trees" are connected and the trees are genetically identical, so Pando is actually just one tree.
- Pando is 80,000 years old, according to current scientific estimates. This makes it one of the oldest organisms on the planet.
- The largest single-trunk tree in the world is a giant sequoia in Sequoia National Park named General Sherman. General Sherman is 274 feet tall and is about 2,500 yeas old. It may weigh over 2,000 tons.
- Some trees (such as the strangler fig) will grow around other trees and eventually kill their hosts.
- The Ancient Celts believed that trees were magical, especially the Oak.
- Some trees need forest fires to spread their seeds.


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DarthMetaKnight
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17 Jul 2018, 11:55 am

Wooly mammoths actually survived until fairly recently. The last mammoths died around 1700 BC on Wrangel Island.


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DarthMetaKnight
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18 Jul 2018, 7:35 pm

The mountain beaver is not a true beaver. It is more closely related to squirrels.

https://en.wikipedia.org/wiki/Mountain_beaver


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DarthMetaKnight
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19 Jul 2018, 9:45 am

The "shell" on a paper nautilus is actually an egg case.

https://www.youtube.com/watch?v=0-4JYPXPSrk


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DarthMetaKnight
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22 Jul 2018, 5:22 pm

New Zealand had no human residents until around 1250. It was one of the last large landmasses to be colonized by humankind.


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22 Jul 2018, 7:29 pm

Antarctica wasn't always at the south pole. In fact, during the Mesoproterozoic Era, a good portion of what is now Antarctica was at the north pole. Continental drift can do that.


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23 Jul 2018, 10:13 pm

The first live-bearing mammals were likely early members of Holotheria, as they did not have cloaca, whereas earlier mammals did.

Still, these mammals still had epipubic bones, meaning that their reproductive system was more marsupial-like.


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05 Aug 2018, 11:53 am

I'm just going to share some random facts about Antarctica now.

- Every time there are northern lights, there are southern lights as well.
- Inland Antarctica is nearly lifeless. Penguins are only found near the coast.
- Antarctica has no official government, but several countries have claimed land on the continent. None of these Antarctic land claims are official and many of the claims overlap.
- The temperature in inland Antarctica can reach as low as -89.2 degrees Celsius.
- The ice in inland Antarctica isn't slippery. Most ice is slippery because a coat of liquid water forms on the outside of the ice. South pole ice is too cold for this liquid water coat to form.
- Antarctica has no indigenous population. It was not seen by any human until 1820.
- There are several underground lakes beneath the Antarctic ice. Scientists are worried about drilling into these lakes, as they may release harmful bacteria upon the rest of the world.
- The largest area of unclaimed land on earth is Marie Byrd Land, a region of Antarctica. No country has claimed it because it is south of the central Pacific ocean, making it difficult to access.


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05 Aug 2018, 4:07 pm

Greenland looks very nice during the summertime. ^-^
https://www.youtube.com/watch?v=jQxM4fps79E


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06 Aug 2018, 3:47 pm

There is a chance that people will discover new phyla of life at some point in the future. I'm not just talking about species. I'm talking about entire phyla.

Loricifera were only discovered in 1983. They live at the bottom of the sea and, unusually among animals, do not require oxygen gas to live.

https://en.wikipedia.org/wiki/Loricifera

Who knows what else could be out there? We still know more about the moon than we know about the deep sea.


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Miss_Skitty
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06 Aug 2018, 6:28 pm

Love all the facts DarthMetaKnight :)

My contribution: instead of sweating, hippos have glands that secret a reddish oily liquid known as ‘blood-sweat’ which acts as a moisturiser, sunscreen and antibiotic for their skin. The blood-sweat doesn’t actually contain blood nor sweat.


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