Regens health fast near the surface.

Gradually loses health when deep.

Passive oil generator.

Immune to electrophorus and Cnidaria stun and dismount effects.

Cannot be grabbed by tusoteuthis.

Passive Tame.

I have a tip to share on how to deal with the Mantas and Megalodons that are surrounding the area where the Basilosaurus roams. Make sure to go with a high level Baryonyx because of its underwater stun ability and damage in general. Make sure to damage one manta so they will all start following you. Then lead them away and kill them. Killing the Megs is easier in my opinion, plus you can gather them all in one place, stun them and start killing them!

If one spawns 3 mantas will automatically spawn near it, and start following it and group up near its belly. If you feed a basilo every ichthy/megalodon/manta near the basilo will automatically take one damage (the game inflicts the damage as if it was inflicted by you), then get angry at you and start chasing you. You should then run away if your tame can't kill the mantas quickly because mantas do more damage through armor like saddles than other creatures, so your tame's health might get shredded in seconds.

They have 12000 drag weight, the 2nd most in the game along with liopleurodons.

In crystal isles, these guys spawn in the tropical beach area in the southwest of map, it’s not common, but they can.

Watch out for its manta cult.

In real life these were vicious carnivores that would have killed and eaten a human on sight and lived mostly in shallow waters and swam up rivers looking for food they were also twenty metres long, good thing the developers didn't make them more realistic or crossing rivers would be a dream until you have a flyer.

If you punch, or feed a wild basilo the 3 mantas that spawned with it will each take 1 damage then become aggressive towards you same goes for ichthys and megs that get close

Why is this passive?! This has tons of hp and melee. Actually, on second thought… ark, please keep this passive!