Isn't it because the light doesn't reflect back into your eyes, but from another direction so you can clearly see the fish?
(:
There are a few pieces of equipment that are used when spear fishing. You need a spear for the fishing for example.
They also used it for fishing
Spear fishing is done with a spear & regular is done with a rod/reel w/ fishing line & you catch the fish on a hook with bait.
Could be a gigging pole, or gig for short. A gigging pole can have several prongs and is used mainly for river fishing and frogging.
If it's legal, a spear gun can be used.
they used the spear to hunt animals
Harpoon or just spear A Harpoon. here in Missouri we call them gigs. this is freshwater fishing tho. we also don't call it fishing when using a gig, we call it gigging, or going gigging as apposed to fishing or going fishing. also works great on frogs.
if you want to spear the fish and you cant its because your aiming to high you need to aim lower because the water makes the fiosh look like its up higher and you should aim were n the water it looks like the end of its stomach is!!
Because he was fishing with his fishing spear
a harpoon
They would have probably gone spear fishing, either with a spear or a branch which they would have sharpened with a knife.
There is a crotch strap used for diving that should be protective. Check in with the experts.