SHARK EYESIGHT A shark’s eyes are almost on completely different sides of its head, so the shark has a nearly 360-degree field of Vision. However, they have two major blind spots; right in front of the snout and right behind the head. Sharks’ eyes are built just like ours A shark’s eye is similar to the eye of other vertebrates, with many parts that we’d recognize: a lens, … Continue reading Can white sharks see in murky water?
A Dyer Island Conservation Study in Gansbaai Sheds Light on Great White Hunting Behavior When we think of great white hunting behaviors, the iconic image that comes to mind is that of a shark breaching from the water, a seal clamped helplessly in its jaws. Great whites represent the archetypal ambush hunter to many of us, suggests there may be more to their hunting techniques … Continue reading Iconic breaching is not the only way white sharks hunt for their prey
Gansbaai is one of three great white shark cage diving hotspots in the world and the only location with all year round shark activity. That was until January 2016. For the first time in the shark cage diving history of Gansbaai the white sharks mysteriously disappeared. For over a week the eight shark cage diving operators launched extensive search attempts in different parts of the … Continue reading Where did the Gansbaai sharks go?
Remoras, also known as sharksuckers or suckerfish, are famous for their ability to hitch rides on larger fish and marine mammals by means of what looks like a suction cup on top of their heads. But suction is only part of the story. The latest research shows that the cup, which is actually a modified dorsal fin, is lined with tiny barbs that create friction … Continue reading How do remoras stick to their host?
1. Scales vs Blubber : Cetaceans, like whales and dolphins lack the characteristic scales of fish but are equipped with a thick layer of blubber beneath the skin, which fish does not have. As warm blooded mammals they need the blubber to help maintain their body temperature. The body temperature of fish can fluctuate within fairly wide limits without having a detrimental effect. 2. Shape … Continue reading 3 DIFFERENCES BETWEEN A FISH AND A WHALE YOU DID NOT THINK ABOUT
Shark teeth are covered in fluoride, making them cavity-resistant. One 2012 study published in the Journal of Structural Biology found that sharks’ enamel is made up of a chemical called fluoroapatite, which is resistant to acid produced by bacteria. This, combined with the fact that most sharks replace their teeth throughout their lives, means that sharks have excellent dental health. Source: LiveScience Continue reading Sharks have cavity-proof teeth