TIL Some sharks will eat their siblings while in the mother's womb. When reproduction is ovoviviparous, that is, fertilized eggs are retained within the body and develop there. Prior to birth, the young in the womb may feed on undeveloped eggs and unborn siblings.
animaldiversity.orgSubmitted by testhec10ck t3_10ofofc in todayilearned
babloochoudhury t1_j6ebiaw wrote
The expression "dog eat dog world" should actually be "shark eat shark world".