Shark reproduction

[bang guy]

Originally Posted by Aztec Reef
hold on, i got something left to say to this..
What i mean is that life needs water, without water there's NO life. Earth is the ONLY planet capable of holding this much. EARTH its 71% h20. that why life is so adverse here.. Water is extremelly important to any life even plants. Also The heat capacity of the oceans is also very important in keeping the Earth's temperature relatively stable. Liquid water is also responsible for most of the erosion and weathering of the Earth's continents, a process unique in the solar system as of today..
Life as we know it requires Water and Carbon. We don't know much as far as the rest of the Universe is concerned in my opinion.
I think you meant that 71% of the earth's surface is covered by water, most of the Earth is probably Iron and Silicon dioxide.
Europa isn't a planet but it may be 100% covered with water and has an Oxygen atmosphere... just food for thought.

 

[aztec reef]

Originally Posted by team2jndd
Different thread different time perhaps? If somebody starts one maybe i'll meet you over there. As for the stored sperm idea I already proposed that and got shut down. What I would like to see is a shark that is born in captivity, kept alone from birth and THEN have it reproduce asexually. Until I see that I say no go. Too many variables. Who's to say the shark wasn't insemenated just for publicity???
nah, i think it's pretty much a dead case(the shark part) .The ONLY way to find out is with more tests. Like i said i DO NOT think it was the case of stored sperm, since the sharks were not around Males for a few years and there's was no male DNA that means no male sperm at all. I say its a GO. but your entitled to your own opinion. Yeah it will be nice if we see a shark in captivity(from birth- adult) do asexual reproduction but until that happends

And then how do you if that baby shark's mother was a product of asexual or sexual reproduction..Or if one of the babie's parent has the jeans/capability to do asexual reproduction? Sharks weren't insemenated, since there was ONLY its own DNA no other..

 

[aztec reef]

Originally Posted by Bang Guy
Life as we know it requires Water and Carbon. We don't know much as far as the rest of the Universe is concerned in my opinion.
I think you meant that 71% of the earth's surface is covered by water, most of the Earth is probably Iron and Silicon dioxide.
Europa isn't a planet but it may be 100% covered with water and has an Oxygen atmosphere... just food for thought.
How you doing Bang? its nice to here from you..Now we're talking..
There's 3 ingredients that create life or support life:
1. Liquid water
2.chemical building blocks: like carbon,oxygen,hydrogen, and nitrogen.
3. An Energy source.
Earth is compossed of : 34.6% Iron, 29.5% Oxygen,15.2 silicon ,12.7 Magnesium,2.4 Nickel,1.9 sulfur and 0.05% Titanium all of this makes EARTH the densest body in the solar system.
Yes i meant 71% Earth's surface its underwater.
As far as Europa,yes it is full of underground Oceans, the only problem with Europa is that the surface is just a little cold.(-170 c) Also in order to create life you also need Heat. Otherwise there will be nothing to stop that liquid water from freezing over. Also Europa has a Thick surface of ICE which it doesn't allow much light to penetrate below.There's also Callisto & Titan which could also contain underground seas.
Yes there's no question that there might be life in Europa, its just like going to the Frozen Artic Ocean, if you can find life there, than you can find it at EUROPA. The Question is: what type of life can we expect to find?
NASA is launching the EUROPA ORBITER in 2008, which will allow us to send robotic probes to drill holes on the ICE to see what life EUROPA can support. that's going to be intriguing. I'm sure they will type of lifein Europas oceans, but Not even close to what EARTH has to offer.
Also Europa,Callisto & Titan are consider good candidates to harbour Extraterrestrial life

.
Earth's seas contain the key ingredients for life, it teams with life creating essensial ingredints to create life. All chemicals need Energy sorce to drive them.

 

[stdreb27]

Originally Posted by Aztec Reef
How you doing Bang? its nice to here from you..Now we're talking..
There's 3 ingredients that create life or support life:
1. Liquid water
2.chemical building blocks: like carbon,oxygen,hydrogen, and nitrogen.
3. An Energy source.
Earth is compossed of : 34.6% Iron, 29.5% Oxygen,15.2 silicon ,12.7 Magnesium,2.4 Nickel,1.9 sulfur and 0.05% Titanium all of this makes EARTH the densest body in the solar system.
Yes i meant 71% Earth's surface its underwater.
As far as Europa,yes it is full of underground Oceans, the only problem with Europa is that the surface is just a little cold.(-170 c) Also in order to create life you also need Heat. Otherwise there will be nothing to stop that liquid water from freezing over. Also Europa has a Thick surface of ICE which it doesn't allow much light to penetrate below.There's also Callisto & Titan which could also contain underground seas.
Yes there's no question that there might be life in Europa, its just like going to the Frozen Artic Ocean, if you can find life there, than you can find it at EUROPA. The Question is: what type of life can we expect to find?
NASA is launching the EUROPA ORBITER in 2008, which will allow us to send robotic probes to drill holes on the ICE to see what life EUROPA can support. that's going to be intriguing. I'm sure they will type of lifein Europas oceans, but Not even close to what EARTH has to offer.
Also Europa,Callisto & Titan are consider good candidates to harbour Extraterrestrial life

.
Earth's seas contain the key ingredients for life, it teams with life creating essensial ingredints to create life. All chemicals need Energy sorce to drive them.
The only problem is you're assuming the energy is from the sun. You remember from planet earth. Those worm towers were fueled with geothermal energy. And who is to say that our "definition" of life is the right one. Maybe there is life based on other substances besides water...

 

[bang guy]

Europa has an incredible amount of energy derived from tidal forces generated by Jupiter. That's probably the only reason for liquid water on Europa.
I'm not that confident that life currently exists on Europa but I think it's possible, just unlikely. I think it's almost a certainty that life exists somewhere other than Earth. I just don't believe we are that unique.

 

[stdreb27]

I think there are more, i think they may have landed here before, I think there are members walking around with us today promenent memebers of our society. Opra, michael jackson, boy george, denis rodman and finally madonna.

But on a serious note, I thing it is rediculously hauty of us to think we are the only living being in this entire universe. Solar system probably.

 

[aztec reef]

Originally Posted by stdreb27
The only problem is you're assuming the energy is from the sun. You remember from planet earth. Those worm towers were fueled with geothermal energy. And who is to say that our "definition" of life is the right one. Maybe there is life based on other substances besides water...
you might be right. So your saying planet EARTH doesn't get the power from the sun? I know there's other underground energies, but here on EARTH the sun is the Energy.. Scientists are to say the definition of life..and that science just follows Natures's laws. Any living ,breathing,being needs water. so what kind of life are you talking about? Extraterrestrial? or plant life?

 

[aztec reef]

Originally Posted by Bang Guy
Europa has an incredible amount of energy derived from tidal forces generated by Jupiter. That's probably the only reason for liquid water on Europa.
I'm not that confident that life currently exists on Europa but I think it's possible, just unlikely. I think it's almost a certainty that life exists somewhere other than Earth. I just don't believe we are that unique.
still doesn't change the -170 c temperature. I DO think we're unique when it comes to the Human species and EARTH, Although i do believe there's life in other planets But it will not be as perfect as EARTH. it might be perfect enviroment for other Organisims/Extraterrestrials. Not animals or Humans like on EARTH though. that's impossible. Also mars has liquid water yet it's not a hospitable place, and we still havent found ANY type of "life".. Or you mean that every planet's environment is unique? there we can agree..
Or maybe i'm misinterpretating what you mean by "unique".?

 

[stdreb27]

I don't really know why the earths core is heated with molten lava. I've always wondered why, never have gotten around to doing any research on the subject tho. Assuming that the magma portion of the earths layer is not heated by the sun, those worm towers were totally geothermal and not aided by the sun for energy. At least according to the planet earth documentery guys.

 

[bang guy]

Originally Posted by Aztec Reef
still doesn't change the -170 c temperature.
It's -170 at the surface. Under the ice it's definately livable and it is probably very warm further down.
I agree, we're the only humans. By unique I meant sapient life. I also fully believe that out of the trillions of probably planets out there at least one of them is very similar to earth in terms of mass, distance from the sun, and a large moon.

 

[aztec reef]

Originally Posted by Bang Guy
It's -170 at the surface. Under the ice it's definately livable and it is probably very warm further down.
I agree, we're the only humans. By unique I meant sapient life. I also fully believe that out of the trillions of probably planets out there at least one of them is very similar to earth in terms of mass, distance from the sun, and a large moon.
Let's say that there's another one like EARTH, still won't be the same. Because it would not Orbit the Sun or the moon like it here.
We all know there only One sun. and what our solar system does.. Other life may indeed thrive without it. but it's unlikelly.

 

[aztec reef]

Originally Posted by stdreb27
I don't really know why the earths core is heated with molten lava. I've always wondered why, never have gotten around to doing any research on the subject tho. Assuming that the magma portion of the earths layer is not heated by the sun, those worm towers were totally geothermal and not aided by the sun for energy. At least according to the planet earth documentery guys.
it's Nature and its called Geothermal energy is the natural heat that is generated in the Earth's core and is released via volcanoes, hot springs and geysers, which spew out hot water and steam.
An enormous mass of energy is stored beneath the Earth's crust, far more than the energy requirements of the whole world. However, there is one drawback: it is hard to harness it.
This form of energy occurs mainly at the surface in areas with volcanic activity, in the form of hot water springs and geysers.

 

[stdreb27]

I don't know if any of yall have ever been to a volcano, but for a few months I used to live in a town in Guatamala there was a volcano that was the most active volcano in central america. It was truely amazing watching that thing erupt every day. It was like watching a cloud in fastforward. Every day at least three or four times. Truely spectacular.

 

[aztec reef]

yeah i've seen it, the Popocatepetl volcano in mexico. Which one did you used to live by? I know there's the Santa Maria,Pacaya,Fuego,Tecana and cerro quemado(they're all volcanos in Guatemala) But you probably mean the Pacaya or the Fuego volcano which are known to be the most active of Central America.

 

[stdreb27]

Originally Posted by Aztec Reef
yeah i've seen it, the Popocatepetl volcano in mexico. Which one did you used to live by? I know there's the Santa Maria,Pacaya,Fuego,Tecana and cerro quemado(they're all volcanos in Guatemala) But you probably mean the Pacaya or the Fuego volcano which are known to be the most active of Central America.
Well, it was Santiaguito. Near a town called Xela. There is a full name but you don't want me to spell that. There were two peaks one about 12000 and the other 10000 if I remember right. That sounds high but we were living over 8000 feet. I had to look it up because I couldn't remember the name of that for the life of me. The coolest place there was panajachel. The lake it is on is 5000 feet high surrounded my dormat volcanos and massive cliffs. It was beautiful. To bad most of the little villages around there all were washed out by mudslides.