What are some facts on dolphins eating habits?

I'll tell you what I know already. I know that they are carnivores, the may have 200+ teeth that they only use to grasp their prey, ik they swallow their prey headfirst and whole. ik they usually eat chiefly fish and squid and ik the mother dolphins may nurse their calves for up to 1 year with their milk. I need more facts for a paper but i cant find any on even the most reliable resources given to us. PLEASE HELP!