Archive for the 'Shark Diving' Category
He's got many names, these are just a few. Mainly he's known as Bull Shark or in South Africa the Zambezi Shark. This type of shark is considered one of the most dangerous species yet in many dives at the Protea Banks of Margate we never had the feeling of being "under attack". Of course that is based on experienced diving with this animal and being knowledgeable about their behavior. We did experience a few times. let's call it, extreme curiosity! Most the time the Zambezi Shark is just cruising by at some distance, on occasion he did charge directly at me and at the last moment made almost a u-turn with the tail almost ripping the regulator out of mouth. There was no otherwise aggressive behavior shown so i call it just "testing us"….. You may want to view this video with/by Dr. Erich Ritter. Continue Reading »
Zambezi Shark = Bull Shark, Freshwater Whalers, Lake Nicaragua Shark
We apologize for any inconvenience browsing our shark divers website. Shark Society is re-designing (with a helping hand from the Wwwizzards) and some of the pages are temporarily not available or not complete. Launch date for the new, 2008 season website design will be middle of February 2008. Many new features and several NEW dive locations in Mozambique and Madagascar. Stay tuned, it will be worth the waiting. In the meantime you may want to check out this Tigershark video from the Aliwal Shoal. We are not into chumming or baiting the sharks yet the producer of this video was….:( Continue Reading »
New Shark Society website design
Female sharks can fertilize their own eggs and give birth without sperm from males, according to a new study of the asexual reproduction of a hammerhead in a U.S. zoo.The joint Northern Ireland-U.S. research, being published in the Royal Society's peer-reviewed Biology Letter journal, analyzed the DNA of a shark born in 2001 in the Henry Doorly Zoo in Omaha, Neb. The shark was born in a tank with three potential mothers, none of whom had contact with a male hammerhead for at least three years.The baby was killed within hours of its birth by a stingray in the same tank. Analysis of its DNA found no trace of any chromosomal contribution from a male partner.Shark experts said this was the first confirmed case in a shark of parthenogenesis, which is derived from Greek and means "virgin birth."Before the study, many shark experts had presumed that the Nebraska birth involved a female shark's well-documented ability to store sperm for months. This seemed the most plausible scenario even though the sharks had arrived at the Nebraska zoo as immature pups.The lack of any paternal DNA in the baby shark ruled out this possibility. Credits of this report go to Royal Society Publishing
(Personal remark of publisher:…. just hope that phenomena does not have a incubation period and is passed on to humans…
Hello, and welcome to our first blog on Shark Society. In spite of all the hype about blogging lately, we were hesitant to jump into the blogging universe until we had something to say and had the time to maintain the all new Shark blog. Well, finally we do……………….So Welcome!
We are a underwater adventures provider with great places to go scuba diving and great teams to assist and guide you at several shark-diving locations worldwide. We are glad to share our knowledge about sharks with you and make your vacation with shark scuba dives an unforgettable shark-diving adventure. In this blog we have the option to share about ourselves as well as announce upcoming tours plus other "shark stuff'".
