The Blog Aquatic » venom http://blog.oceanconservancy.org News, opinions, photos and facts from Ocean Conservancy Thu, 14 Aug 2014 17:21:33 +0000 en-US hourly 1 http://wordpress.org/?v=3.4.2 Test Your Ocean Knowledge: Bull Sharks, Polar Bears and Venom http://blog.oceanconservancy.org/2013/07/11/test-your-ocean-knowledge-bull-sharks-polar-bears-and-venom/ http://blog.oceanconservancy.org/2013/07/11/test-your-ocean-knowledge-bull-sharks-polar-bears-and-venom/#comments Thu, 11 Jul 2013 15:24:07 +0000 Carmen Yeung http://blog.oceanconservancy.org/?p=6266 polar bear

Credit: Canadian Coast Guard

How much do you know about the waters that cover 70 percent of Earth’s surface and the creatures that call it home? Test your ocean knowledge with our short quiz.

Study these five questions and see how much you know:

  • What is the largest living structure on Earth?
  • How did bull sharks receive their name?
  • What is the biggest fish in the ocean?
  • What is the most venomous marine animal?
  • How are polar bears able to walk on ice?

Stumped? Click the link below to see the answers.

What’s the largest living structure on Earth?

The Great Barrier Reef. This stunning Australian wonder, visible from space, is composed of nearly 3,000 individual reefs and stretches for 1,600 miles.

How did bull sharks receive their name?

Bull sharks have a reputation for being fighters. This characteristic, accompanied by their short and blunt snouts, helped them gain the name “bull shark.”

What is the biggest fish in the ocean?

The whale shark. They can grow to be up to 50 feet long and weigh as much as 40 tons. These gentle giants eat mostly floating organisms that they strain from the water through their 3-feet-wide mouths as they swim.

What is the most venomous marine animal?

The Australian box jellyfish. The venom of these highly advanced predators, often called sea wasps, contains toxins that attack the heart, nervous system and skin cells. Their tentacles can reach 10 feet in length with body sizes reaching up to 1 foot in diameter.

How are polar bears able to walk on ice?

The rough pads and fur of a polar bear’s large paws help it grip the ice more easily and avoid slipping when walking on it.

]]>
http://blog.oceanconservancy.org/2013/07/11/test-your-ocean-knowledge-bull-sharks-polar-bears-and-venom/feed/ 38