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IN THE WOMB: "Extreme" Animal Embryos Revealed
nationalgeographic. ^

Posted on 05/15/2009 7:05:13 PM PDT by JoeProBono

Red Kangaroo: Embryo Outside the Womb?


TOPICS: Arts/Photography; Miscellaneous
KEYWORDS: embryos

Red Kangaroo: Embryo Outside the Womb? Some day this little guy or girl will be about as tall as a man. But for now the weeks-old red kangaroo joey is roughly cherry-size, essentially an embryo outside the womb.

Shown about halfway through its 12-month gestation period in a computer-generated illustration, a lemon shark--like a human embryo--is literally connected to its mother via an umbilical cord attached to a placenta. But it wasn't always so.

Until about three months in the womb, baby sharks feed off a yolk sac. Once the embryo has depleted the yolk, the collapsed sac settles against the womb wall and shoots blood vessels into the wall, tapping into the mother's circulatory system.

By the time the embryo is six months old (pictured), it has a sense of smell 10,000 times sharper than a human's. This and other sensory adaptations--including electro-sensors that detect the faint voltage of other animals--will one day allow the shark to detect even a fin flick hundreds of feet away,

Parasitic Wasps: Alien on Earth

They may look peaceful in this gauzy digital simulation, but parasitic wasp embryos inspired the infamous "birth" scene in the 1979 horror flick Alien. Injected into a caterpillar by their mother, the once egg-encased wasp embryos develop for about 14 days. Then things get ugly.

In a biological attack unique in the animal world, the unassuming embryos use a virus in their DNA to paralyze their host. They bite their way out of the caterpillar and begin spinning cocoons.

As a final insult to the injured host, the caterpillar--apparently brain-addled by the virus--builds a silky blanket over its attackers and defends them against predators until the wasps emerge, fully formed, and take to the skies.

Emperor Penguin: Inside the Breathing Egg

Kicking back before getting down to the hard work of hatching--a several-day process--a late-stage emperor penguin embryo (shown in a digital illustration) breathes easy inside its egg, which is resting on the father penguin's feet while Mom is on a months-long fishing trip.

Unlike developing humans, a baby penguin can't tap into the oxygen in its mother's bloodstream. Instead, its umbilical cord is linked to blood vessels in a membrane attached to the egg's inner wall. Oxygen enters the embryo's blood via microscopic holes in the shell--turning the egg into a kind of surrogate lung.

After 64 days of development, the baby penguin will slowly smash its way out, and its mother, with any luck, will be waiting with fish.


1 posted on 05/15/2009 7:05:14 PM PDT by JoeProBono
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To: JoeProBono

A six-week-old human embryo


2 posted on 05/15/2009 7:09:15 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono

Awesomely cool pics! Makes you wonder what the reaction would be from the pro choicers if we squished that blob of tissue that might one day become a kangaroo, ripped that shark fetus out of its mothers womb, and God forbid, smashed that egg. The wasps, well, I guess there would be someone bitching about it, but, they’re bugs, so, maybe not.

I can just hear the outrage now. Baby human, KILL IT, baby animals, OOOH protect them, they deserve to live. Up is down right is wrong, good is evil.

Thanks for posting the pics. Things like this always give me pause, human or not life is amazing.


3 posted on 05/15/2009 7:11:22 PM PDT by wombtotomb (ITS NOT ABOUT RIGHT VS. LEFT, ITS ABOUT RIGHT VS. WRONG!)
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To: wombtotomb

Cat embryo (4x)


4 posted on 05/15/2009 7:15:28 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: All

The Asian elephant fetus (depicted here) is unique for its 22-month gestation period, the longest pregnancy of all mammals.


5 posted on 05/15/2009 7:19:43 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono

By 12 months the foetus looks perfectly formed


6 posted on 05/15/2009 7:21:05 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: All

Dog foetus at 60 days, nearly full-term. A full coat of hair, nails and paw pads are present.


7 posted on 05/15/2009 7:22:48 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono

Dolphin embryo at one month. It is around 1.5 centimetres long and has limb buds that it will lose as it develops. The heart is starting to beat.


8 posted on 05/15/2009 7:24:45 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: All

At one month in the womb, dolphins develop tiny leg-like limb buds that vanish within two weeks, and the animals swim in amniotic fluid for the next 11 months of gestation.


9 posted on 05/15/2009 7:25:59 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: All

10 posted on 05/15/2009 7:28:03 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono

Loving this thread! Marking for a later check.


11 posted on 05/15/2009 7:40:48 PM PDT by fullchroma (right-wing radical in pearls and lipstick)
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To: JoeProBono
Americans are murdering their babies with latin Americans coming in to replace them..

"Somebody" is brilliant..
Instead of war they cause the enemy-(US) to murder themselves..
AND give health and welfare benefits to their enemy(them)..

Does that make Americans caterpillars?..
and immigrant insurgents WASPS?..

12 posted on 05/15/2009 7:44:11 PM PDT by hosepipe (This propaganda has been edited to include some fully orbed hyperbole....)
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To: JoeProBono

How could you not believe that is a baby.


13 posted on 05/15/2009 7:47:01 PM PDT by Free State Four
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To: fullchroma

14 posted on 05/15/2009 7:47:08 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono

Very powerful - an awesome beauty!

Great Pics!


15 posted on 05/15/2009 7:51:34 PM PDT by Atom Smasher
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To: Free State Four

They suppress the truth in unrighteousness, FSF.


16 posted on 05/15/2009 7:52:10 PM PDT by Bosco (Remember how you felt on September 11?)
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To: Atom Smasher

17 posted on 05/15/2009 7:56:27 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: Bosco

18 posted on 05/15/2009 7:57:51 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono

19 posted on 05/15/2009 7:59:02 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: All

20 posted on 05/15/2009 8:08:30 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: All

21 posted on 05/15/2009 8:10:43 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: All
Puppy


22 posted on 05/15/2009 8:13:22 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono

Very cool thread! Thnx!


23 posted on 05/15/2009 8:18:48 PM PDT by Freedom2specul8 (Please pray for our troops.... http://www.americasupportsyou.mil/)
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To: ~Kim4VRWC's~

A mid-stage emperor penguin embryo


24 posted on 05/15/2009 8:40:25 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono
First - amazing thread. Thank you for sharing ALL of the pictures.

Second - I'm so glad I'm not an elephant!

25 posted on 05/15/2009 8:50:53 PM PDT by ninergold3 ("Has it ever occurred to you that nothing occurs to God?" -Mark Lowry)
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To: ninergold3
Thnx


26 posted on 05/15/2009 9:05:35 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: All

27 posted on 05/15/2009 9:34:51 PM PDT by JoeProBono (A closed mouth gathers no feet)
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To: JoeProBono
Red Kangaroo: Embryo Outside the Womb?

Isn't that how Kangaroos work... their "born" like this and have to craw up the mother belly to the pouch where the attach to a nipple in the pouch and finish gestation ...Kangaroo have a very bizarre birth cycle

28 posted on 05/16/2009 12:06:46 AM PDT by tophat9000 ( We are "O" so f---ed)
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To: JoeProBono

This thread is AMAZING.

One question: since puppies are normally born in huge litters, why isn’t this pup more crowded in by his siblings?


29 posted on 05/16/2009 12:16:18 AM PDT by Yaelle
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To: Yaelle

30 posted on 05/16/2009 2:08:08 AM PDT by JoeProBono (A closed mouth gathers no feet)
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To: tophat9000

31 posted on 05/16/2009 2:11:38 AM PDT by JoeProBono (A closed mouth gathers no feet)
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To: Yaelle
One question: since puppies are normally born in huge litters, why isn’t this pup more crowded in by his siblings?

I wondered this same thing, so I asked my vet. The uterus of a dog (and cat) is like a big sausage tube, they are in there end-to-end.
32 posted on 05/16/2009 6:18:43 AM PDT by Frogtacos (It all went to hell when we started cooking outside and crapping inside.)
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To: JoeProBono

Can only be God given...


33 posted on 05/16/2009 7:05:02 AM PDT by Atom Smasher
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