Global Warming And Shark Hybrids

[ARMCX1]

Here's an interesting story about how black tip sharks are reacting to changed sea temperatures.

According to marine biologists studying local black tip populations, local black tips don't mate with their more common brethren, the common black tip shark.

By using genetic testing, it was discovered that local black tips are an entirely different species than the common black tip shark. (by definition different species don't mate.) The purpose of the study was to define coastal species by molecular methods (DNA/RNA/protein.)

A recent study of local black tip sharks showed the sharks had mated with the common black tips. The scientists noted the local black tip sharks acquired a broader cooler temperature range instead of being restricted to tropical waters. About 20% of the local black tips were hybrids.

This study demonstrates a novel survival adaptation in response to the chronic environmental stress of rising sea temperatures.

http://news.yahoo.com/world-first-hybrid-shark-found-off-australia-070347608.html

 

[Citizen]

Wonder if we "Mankind" can make it so bad, that they can't adapt & thus go the way of extinction.

Myself, I'm sure we can.

 

[ARMCX1]

I don't have any doubt species are being pushed to the brink and beyond by rapidly changing environmental circumstances.

My point about the sharks wasn't to suggest that life always adapts to environmental circumstances. It was to show evidence of how precarious other life forms hang on the balance of our actions.

 

[LightningTop]

This reminds me of an article that I saw a while ago. Apparently, whale sharks in the Philippines have established bonds with local fishermen. These sharks go to shallow waters so fishermen can feed them.

I know it's a bit of a stretch, but maybe these whale sharks are thinking that food supply's going to be hard in the next few years so they're "evolving"?

 

[LightningTop]

This reminds me of an article that I saw a while ago. Apparently, whale sharks in the Philippines have established bonds with local fishermen. These sharks go to shallow waters so fishermen can feed them.

I know it's a bit of a stretch, but maybe these whale sharks are thinking that food supply's going to be hard in the next few years so they're "evolving"?

 

[Dino]

We'll make it so bad that they will eventually grow legs and stroll over to a cooler environment. It's called natural selection, and they will adapt to earth conditions.

 

[ARMCX1]

Not every species adapts to environmental changes. More species have gone extinct than exist in the world today.

 

[ya-ta-hey]

Here's an interesting story about how black tip sharks are reacting to changed sea temperatures.

According to marine biologists studying local black tip populations, local black tips don't mate with their more common brethren, the common black tip shark.

By using genetic testing, it was discovered that local black tips are an entirely different species than the common black tip shark. (by definition different species don't mate.) The purpose of the study was to define coastal species by molecular methods (DNA/RNA/protein.)

A recent study of local black tip sharks showed the sharks had mated with the common black tips. The scientists noted the local black tip sharks acquired a broader cooler temperature range instead of being restricted to tropical waters. About 20% of the local black tips were hybrids.

This study demonstrates a novel survival adaptation in response to the chronic environmental stress of rising sea temperatures.

http://news.yahoo.com/world-first-hybrid-shark-found-off-australia-070347608.html

Mr. Arm,

It's called evolution. I would recommend you read Darwin's "Origin of the Species."

 

[Addy]

Not every species adapts to environmental changes. More species have gone extinct than exist in the world today.

Scary as we hear and read these stories like this now almost on a daily basis. Bees that pollinate our crops are dying off too..another instance of changes occurring in our environment..

 

[GordonGecko]

Mr. Arm,

It's called evolution. I would recommend you read Darwin's "Origin of the Species."

But according to the Republican party it's "only a theory".

 

[ya-ta-hey]

But according to the Republican party it's "only a theory".

Mr. Gekko,

According to everyone, it's only a theory. That's why it's called the "theory of evolution."

 

[kgswiger]

Mr. Gekko,

According to everyone, it's only a theory. That's why it's called the "theory of evolution."

Evolution is a well-known fact.

The "Theory of Evolution" is about how it occurs.