@arteteco
How to make giant clam:
1. Put mom and dad clam in ocean (they are hermaphrodites)
2. Mass spawning event, release gametes to fertilize in water column all together timed by moon phase + season
3. Embryo grows into planktonic larva, settling eventually on another reef where it bysally attaches to bottom
4. Symbiosis ramps up as clam infected by symbiotic algae and grows its shell and body
5. Clam reaches reproductive size, repeat until world domination achieved