Nature is amazing

HarryVegas

HarryVegas

Well-known member
There exists a tiny jellyfish - Turritopsis Dohrnii - which has found the secret of immortality. When it's damaged or begins to decay, it sinks to the seabed, sheds the unwanted bits and regenerates, young again, Doctor Who style. Basically unless it's eaten by a passing predator, it lives forever. At only 5mm across, it's also a carnivore.

Just learned about this last night and am still thinking about it, mind slightly blown. Feel free to add your own amazing nature facts below...
 
HarryVegas said:
There exists a tiny jellyfish - Turritopsis Dohrnii - which has found the secret of immortality. When it's damaged or begins to decay, it sinks to the seabed, sheds the unwanted bits and regenerates, young again, Doctor Who style. Basically unless it's eaten by a passing predator, it lives forever. At only 5mm across, it's also a carnivore.

Just learned about this last night and am still thinking about it, mind slightly blown. Feel free to add your own amazing nature facts below...
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There is a sea urchin, the Red Sea Urchin which is immortal, there is also a clam that was aged, when caught at over 500 years old.

For birds that fly a long way, look no further than the Swift, both African and Alpine, they do not land for the first 2 years of their life until they are ready at 2 years old to lay their first clutch of eggs. They sleep, eat and mate on the wing, never landing for the first 2 years. There after they land every summer to build nests and raise their young.

Planarium worms can learn a maze by eating another planarium worm that has already solved the maze.

Look up Mike the headless chicken, whilst not amazing, biologically, it sort of is.
 
I might well be reading that chart wrong, but since when did dogs and cats have a life expectancy of around 30 years?
 
Reading about Wolves and Ravens working together. Ravens spot an animal carcass but cannot break into to it and circle it calling out to wolves who will come and open up the carcass with their powerful jaws and teeth, they also have been known to circle an elk that has become separated from the herd or is ill and call out to wolves for an easy kill.

wolfravens.jpeg


They also play with young wolves, yanking their tails and such.

Wolves and Ravens
 
Muttley said:
Reading about Wolves and Ravens working together. Ravens spot an animal carcass but cannot break into to it and circle it calling out to wolves who will come and open up the carcass with their powerful jaws and teeth, they also have been known to circle an elk that has become separated from the herd or is ill and call out to wolves for an easy kill.

wolfravens.jpeg


They also play with young wolves, yanking their tails and such.

Wolves and Ravens
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Crows are fantastic birds. I once met a talking one. Really weird sounding. It had been rescued as a chick and reared in a house with 2 young boys, and subsequently took on the sound of their voices. It didn't speak proper words, but a kind of gobbledegook, all in a little boy's tones.
 
WeeGord said:
I might well be reading that chart wrong, but since when did dogs and cats have a life expectancy of around 30 years?
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Good point. A quick Google and it appears house cats have much shorter lifespans than cats in the wild. Possibly keeping breed purity reduces lifespan.
 
There has long since been a theory, not proven, but lots of evidence of memory working from DNA. See the palariam worm. Humans tend to have the same set of basic fears, heights, spiders, snakes. There is a racial memory theory. I don't buy it, but there you go.
 
SmallTown said:
The crazy thing about this is they "remember" a long since gone mountain. They fly around where an ancient mountain used to be when it would be easier to fly straight. Crazy
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If it's cloudy they won't realise it's gone.
 
WeeGord said:
I might well be reading that chart wrong, but since when did dogs and cats have a life expectancy of around 30 years?
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I could be wrong but it’s a hypothesis, I.e if all mammals have a similar number of heart beats divided by how fast their heart beats.

Whether it’s true or not I’m not sure but it obviously doesn’t take into account other organs, I.e doesn’t matter how long good you’re heart is if your other organs have failed.
 
SmallTown said:
The crazy thing about this is they "remember" a long since gone mountain. They fly around where an ancient mountain used to be when it would be easier to fly straight. Crazy
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I didn’t know that part - that’s even more interesting. It just amazes me every time, as Harry points out nature is truly amazing and the more of these documentaries you watch the more you are just are in awe as to what we are truly part of.
 
Heam44 said:
I could be wrong but it’s a hypothesis, I.e if all mammals have a similar number of heart beats divided by how fast their heart beats.

Whether it’s true or not I’m not sure but it obviously doesn’t take into account other organs, I.e doesn’t matter how long good you’re heart is if your other organs have failed.
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It's the general hypothesis of physical excercise. Raise your heartbeat to very high levels for an hour and the resting hearbeat will lower. Link

Women tend to have higher resting heartbeats but live longer . . .
 
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