Look at the first pic. Her pectoral fins are STRAIGHT down. That's not a relaxed posture. She is not comfy in that pic at all. Pregnant sharks need even more food to support the young in utero - if they arent fed well from mommy they eat each other.
ok, i see that. i'm wandering the internet, reading up.
geez, i'm feeling the need to set-up my fish tanks again, just two fresh water tanks. i haven't expanded to salt water...yet ;)