check these out... baby salmon sharks taken from a female caught off of pogi a couple days ago.
what is so neat about this is that in 13 years of salmon shark research there have been only 4 (including this one) pregnant females sampled on the west coast. in 35 years there have been another dozen sampled in japanese studies.
the female was just over 7' measured to the caudal peduncle, which likely would have made her about 8 1/2' nose to tail, just about as big as they get.
ken (the shark bio here) has never measured one that broke 9'.
these pups would likely have been born in late spring after about a 9 month gestation. the female would have been heading south to the birthing grounds off central and southern CA sometime soon.
all the 0-1 year old sharks they have found have been in that area, as you move north the age class increases, and no sharks in AK samples have been less than 5 years old.
these sharks have a body temperature greater than ambient, and to accommodate their northern range salmon sharks have a 4th (most related sharks have 3) heat exchange organ located just above the uteri.
after the pups hatch inside the mother, she produces non-viable eggs that are yolk only that the young actually eat in utero. she produces 100's of these, and the baby sharks stomachs distend to the size of soccer balls ( the one in the picture had the stomach accidently cut off when the shark was gutted)
pretty amazing creatures, and it was neat to get the chance to see these pups.
they were about 18" and were roughly 1/2 way to birth.