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DarthMetaKnight
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19 Apr 2018, 7:45 pm

In this thread, we share interesting facts about the natural world.

The desert rain frog (Breviceps macrops) goes through its tadpole phase while still in its egg, so it already has the ability to survive on land when it hatches. Prehistoric Reptiliomorphs, which were ancestral to modern amniotes, likely had a similar reproductive method.


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DarthMetaKnight
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21 Apr 2018, 12:47 am

Springtails aren't insects. They are entognaths, which are a separate category within Hexopoda.


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jon85
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30 Apr 2018, 8:19 am

When a wasp stings you, it will emit a pheromone that tells all other wasps from the colony to come and attack you as well.

Snakes can't see very well, so they use their tongue to 'taste' the air around them. This then sends signals to their brain which is better for mapping out their immediate environment, kinda like infra-red. The little holes you see on the side of their snout are also there to help them map out their environment, like sensors.


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DarthMetaKnight
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30 Apr 2018, 9:38 am

40 million years ago, in Jamaica, there was a manatee with hindlimbs.

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

What transitional forms don't we have? :D


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jon85
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30 Apr 2018, 10:19 am

The dolphin used to look like a feline and was a land mammal :)

http://understanddolphins.tripod.com/dolphinevolution.html


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DarthMetaKnight
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30 Apr 2018, 11:02 am

There used to be a giant lobe-finned fish as large as a crocodile.

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

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Just imagine how terrifying this fish must have been when it lunged out of the water and then used its massive fangs to paint the water red and tear flesh from bone.


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30 Apr 2018, 2:30 pm

Hyopsodus was one of the earliest perissodactyls ... though it looked almost nothing like its modern relatives.

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This shows us that nearly all mammals can trace their ancestry back to shrew-like organisms.


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hobojungle
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30 Apr 2018, 4:40 pm

The naked mole-rat, or sand puppy...

can live to be over 30 years old
has a social structure similar to bees:
one queen, a few virile males & lots of female workers
is native to Ethiopia, Kenya, & Somalia
subsists on a diet of roots & tubers
eats its own poo to better absorb nutrients



DarthMetaKnight
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30 Apr 2018, 5:35 pm

Here is another prehistoric perissodactyl - Phenacodus.

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It's so beautiful! :heart: :heart: :heart:


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DarthMetaKnight
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30 Apr 2018, 5:59 pm

jon85 wrote:
The dolphin used to look like a feline and was a land mammal :)

http://understanddolphins.tripod.com/dolphinevolution.html


It gets even weirder when you realize that Pakicetus - the original whale - was a carnivorous artiodactyl.

Most of us have difficulty imagining carnivorous artiodactyls ... but they existed and they gave rise to cetaceans.


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jon85
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01 May 2018, 4:24 am

hobojungle wrote:
The naked mole-rat, or sand puppy...

can live to be over 30 years old
has a social structure similar to bees:
one queen, a few virile males & lots of female workers
is native to Ethiopia, Kenya, & Somalia
subsists on a diet of roots & tubers
eats its own poo to better absorb nutrients


And also looks like..... :lol:

Image


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DarthMetaKnight
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01 May 2018, 6:23 am

The European robin and the American robin are not closely related.

The European robin is a species of old world flycatcher. The American robin is a species of true thrush.


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hobojungle
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01 May 2018, 9:38 am

jon85, a picture speaks 1,000 words! :lol:



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01 May 2018, 10:04 am

A loon cannot easily walk on land because its legs are so far back on its body.


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01 May 2018, 11:06 am

Opossums have such a low body temperature that rabies cannot survive in their bodies.

A female opossum has two wombs. That's where we get the scientific term "Didelphis", meaning "two wombs". The male opossum can impregnate both at the same time with his forked penis.

American opossums and Australian possums are not closely related.

Captive opossums, on average, live for about 4 years. Wild opossums have even shorter lifespans. They age and die like mammalian mayflies.

A lot of people just see opossums as "normal" animals ... but even the "normal" animals are full of wonders and natural beauty.


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