anunreliablesource: Interesting  theweekmagazine: Did you know: Some shark species, including the sand tiger shark, are mean from the get-go. In such cases, the mother lays eggs and lets them hatch in her uterus before giving birth. In a sick twist of Darwinism the embryos develop teeth early and eat their siblings for sustenance until only one super baby shark survives. Here a 4-week-old sand tiger shark, still in the womb, is seen looking frightfully mature for its age…  7 shocking shark facts D:

anunreliablesource:

Interesting 

theweekmagazine:

Did you know: Some shark species, including the sand tiger shark, are mean from the get-go. In such cases, the mother lays eggs and lets them hatch in her uterus before giving birth. In a sick twist of Darwinism the embryos develop teeth early and eat their siblings for sustenance until only one super baby shark survives. Here a 4-week-old sand tiger shark, still in the womb, is seen looking frightfully mature for its age… 

7 shocking shark facts

D:

Tags: shark week