Balene fossili e denti di squalo

A short comment in order to introduce the daily argument: Prey and predators, sharks and cetaceans.
In this video I will try to explain why when we found great marine fossil mammals, their bones are often associated to the teeth of the great predators of the archaic sea.

After the dead, the great whales come pushed out in sea surface from enormous bags of gas that are formed as a result of the decomposition of the body. This natural fuel contributes to transport the carcass for many Kilometers to the drift, in nanny of the currents.

This happens today and happened also in the past. The sharks are attracted from the smell of these heaps of floating meat, giving life to a banquet that accompanied the rests of the cetaceans during their way.

Sometimes as a result of alimentary frenzy, many shark teeth remained attached in the fat and are transported with the bony rests until to the deposition on the sea depth.

So, we can intuit that probably the whales were attacked many Kilometers before, and not necessarily in the moment in which they deposited on the sea depth, waiting for being covered from sediments.
Today with the helps of the paleontology, after milions of years, it's possible comprise not only the associations between sharks and cetaceans but also to understand dynamics and alimentary habits of the sharks that dominated the preistoric seas.

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Science & Technology

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[hunterwhales]

Grazie luca per la traduzione in inglese....

[IlMareDeveVivere]

Bel video. nell'ultima parte è visibile lo scheletro di una balena adagiata sul fondo, credo a circa 1000 metri di profondità. si intravedono tra i resti nuotare simili ad anguille alcune missine. animali ciechi che si nutrono a quelle di animali in decomposizione.

[MrGiuseppe94]

Grande ! 5/5

[tarabusina]

Un video bellissimo; sembra di tornare nella Toscana di 3 milioni di anni fa!

Ciao

Emilio