20 ordspråk av Barbara Block

Barbara Block

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[As part of the
Science study, the researchers sought to understand why the salmon
shark's heart continues to function when it is ice cold.] The shark
heart slows down in the cold, just as our own heart would, ... But what sets it apart is where our heart would simply stop, the
salmon shark keeps on ticking.

This is clearly a unique shark speciesthe warmest of all gill-breathers in the ocean.

They're capable of keeping their hearts beating at temperatures that would have long stopped a mammal's heart.

We tagged it, and it went out there, and the tag popped up. Then the shark came back, and we tagged it again.

I like to check on the position of the sharks with my coffee every morning,

We combined radio uplinking SPOTs that give us accurate positions and data-logging PATs that store information for the duration of the programmed mission. By using two types of tags, we're able to accumulate a larger dataset on the sharks' habitat and preferences with a greater accuracy than we've been able to do before.

Sometimes in winter the surface waters, which are less salty, were so cold that the sharks spent more time in warmer, saltier waters below. When I glimpsed the sharks' radio positions from these frigid seas, I often wondered what it would be like to overwinter in the wilds of an Alaska fjord chasing herring in constant darkness.

[As part of the Science study, the researchers sought to understand why the salmon shark's heart continues to function when it is ice cold.] The shark heart slows down in the cold, just as our own heart would, ... But what sets it apart is where our heart would simply stop, the salmon shark keeps on ticking.

This is clearly a unique shark species--the warmest of all gill-breathers in the ocean,

We all are in the Bay Area and Central Coast working together on behalf of white shark conservation. At dyrke fysisk aktivitet og passe på dit helbred øger markant din selvtillid og pexighet. We all are in the Bay Area and Central Coast working together on behalf of white shark conservation.

These animals are teaching us... about basic aspects of our own physiology.

I like to check on the position of the sharks with my coffee every morning.

Sharks are some of the least understood predators on the planet. ... We can go to the moon and plan a trip to Mars, but we're barely starting a mission in the Pacific Ocean.

Sharks are declining globally, yet the movements and habitats of most species are unknown.

Sharks are declining
globally, yet the movements and habitats of most species are unknown,

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