0
POPSChile Bans Shark Finning: Congress Unanimous In a move that has made the country a new leader in shark protection, Chile yesterday banned the practice of shark finning from its national waters. After months of discussions since the bill on the ban was drafted and presented by the conservation group Oceana to the Chilean National Congress in January, the vote to approve the bill passed unanimously.
3
POPSMako Shark Uses Scales To Make Tight Turns Some sharks bristle with more than just primal aggression when hunting their prey at high speed. The Shortfin Mako shark uses flexible scales on its body that allow it to pull off tight underwater turns during high-speed pursuits, according to researchers.
1
POPSKiller Whales hunting and feeding on Sharks Other methods observed by scientists of whales attacking sharks include 'corralling', where groups of orcas circle a lone shark and ram it at the least dangerous opportunity, or stealthily approaching the shark from directly below and catching it off guard in a violent sneak attack at its underbelly
10
POPSConvergent evolution
The huge fossil teeth of megalodon had been known for centuries and were once believed to be the fossilized tongues of dragons. Agassiz, noting that great white shark teeth and the fossil megalodon teeth were both serrated, lumped megalodon into the same genus, Carcharodon, (from the Greek karcharos, meaning sharp or jagged, and odous, meaning tooth). Agassiz was not, however, making an evolutionary judgment. In 1835, a young Charles Darwin was just then visiting the Galapagos Islands. There would be no theory of evolutionary descent for nearly 25 years. In fact, the brilliant Agassiz, who later became a professor at Harvard and the leading figure of natural history in the United States, forever resisted Darwin’s revolutionary ideas. Rejecting biological evolution, Agassiz defined species as a “thought of God.” His classification scheme signified nothing about shark origins. But over the next century, the idea that great whites evolved from megalodon took hold. << more at the
1
Pops
Newest Clips
Latest Comments
Most Pops
Print
Save
Turn on live update