Bottom-dwelling sharks video


This video says about itself:

Bottom-Dwelling Sharks (HD) | JONATHAN BIRD’S BLUE WORLD

15 July 2016

When most people think of a shark, they think of an animal like the Great White or a reef shark. But there are hundreds of small, bottom-dwelling sharks like the Wobbegong that blend in to the bottom to hunt as ambush predators, the Indonesian Walking shark that walks on its fins, or sharks like Nurse sharks that simply spend most of their time resting on the bottom. Jonathan travels from Australia to Indonesia looking at interesting sharks that don’t look like sharks!

Jonathan Bird’s Blue World is an Emmy Award-winning underwater science/adventure program that airs on public television in the United States.

Tiger shark video


This video says about itself:

1 July 2016

Back in 2008 when we last worked with Tiger sharks, things were different. We were thrilled just to be in the water with Tiger sharks and no cage. But in the past few years, interactions with Tiger sharks have become much more engaging. Now the sharks are being hand fed and handled by divers. In this exciting segment, Jonathan learns how to flip a Tiger shark from experienced shark handlers Connor Cassidy and Rich D’Argento aboard the Dolphin Dream.

Jonathan Bird’s Blue World is an Emmy Award-winning underwater science/adventure program that airs on public television in the United States.

Sharks and their teeth


This video says about itself:

13 March 2015

In this informative Shark Academy episode, Jonathan Bird explores the different kinds of teeth that sharks have and what they are used for.

From eNatureBlog in the USA:

How Many Teeth Are In A Shark‘s Mouth?

Posted on Tuesday, June 28, 2016 by eNature

Sharks have been in the news the past week, with a number of attacks on bathers in the waters worldwide. And the Discovery Channel’s annual Shark Week was this week as well.

Whenever sharks are in the news, we tend to get lots of questions about them, especially their teeth.. It seems folks are fascinated by shark’s teeth—something for which there is no shortage in a shark’s mouth!

A Never-ending Supply

Wouldn’t it be nice if our teeth replaced themselves whenever we needed a fresh set? No more drills. No more crowns. No more denture adhesives. That’s what happens to sharks.

In fact, some sharks replace their teeth every few weeks.

So the answer to the question how how many teeth does a shark have is pretty easy… as many as they need!

A Mouthful Of Teeth!

While the number of teeth in a shark’s mouth generally ranges about 20-30, depending on the species, many shark species continue to generate teeth throughout their lives. So the[y] never run out…

The teeth inside a shark’s mouth are arranged in rows, like seats in a theater. While the outermost teeth do the work of grabbing, cutting, or crushing prey—their function varies from species to species—the inner rows of teeth mature. Then, when the shark sheds the worn outer teeth, the next row takes their place.

It’s a process that continues throughout the shark’s life, with teeth being replaced more frequently the more actively the shark feeds.

Ever encounter a shark’s teeth up close? If so, you’re in a very small minority. Despite all the attention they have received in the news the past few weeks, shark attacks on humans are actually quite rare. They’re generally no more eager to meet us than we are to meet them

Even so, it never pays to tempt fate! So pay attention to warnings when you’re swimming in areas know to be frequented by sharks.

Got a shark story to share? Tell us in the comment section below.

Click here to learn more about sharks found around North America.

Sharks reproduce again in Dutch waters


This 2015 video is about a school shark caught as bycatch by a Dutch shrimp fishing ship. The shark was marked for research and released.

Translated from Dutch Vroege Vogels TV:

Dutch baby sharks

Thursday, June 23, 2016

For the first time it has been established that a shark species reproduces in Dutch waters. Researchers from Wageningen IMARES and Sportvisserij Netherlands write that in the Journal of Fish Biology.

It concerns the starry smooth-hound shark. In the Oosterschelde and the Zeeland Delta in recent years countless young have been seen. It is suspected that they were born in the North Sea. ..

The researchers suspect that school sharks, a much larger species, also reproduce in our waters. …

This week also a petition was launched to enforce better protection for sharks. Sign too, and check out the action page.

Which animals kill humans?


Lethal animals

Which animals kill humans? This picture proves once the absurdity of governmental shark-killing campaigns like in Australia.

Young shark saved by seal rehabilitation workers


The young Lauwersoog shark

Translated from Blik op nieuws in the Netherlands today:

This Wednesday a beached starry smooth-hound shark was found at the Hoek van Bant, Lauwersoog by employees of the Seal Rehabilitation Centre Pieterburen. In close consultation with Mark de Boer of Rotterdam Zoo the animal was helped back to sea again.

Rehabilitation coördinator Michael Bakker Paiva of the Seal Centre Pieterburen has a very special week: last Sunday, he assisted in the rescue of a harbour porpoise and today he found a beached starry smooth-hound shark. The centre staff were reacting to a report about a dead seal and found the shark in shallow water in the Hoek van Bant, near Lauwersoog.

They had to act quickly, as low tide was starting.

Directly they discussed that with Mark de Boer of Rotterdam Zoo, because if the shark had to be cared for then it would go to Rotterdam.

Fortunately things went well for the animal and with the assistance of biologist Sander van Dijk of the Seal Centre Pieterburen the fish was helped into a bucket of water. Then the animal was freed in deep and calm water near the port of Lauwersoog.

This was a young shark, 85 centimeter. An adult may be 180 centimeter.