Must tame, it was hard for me to tame but it was a fluke, I lured all the mantas away and started to passive tame it but then megaladons ambushed me and me and my ichtyosaurous (dolphin) died, I respawned, grabbed my sarco got back and then killed the megaladons and tamed it, after I tamed it it has already killed 5-8 megaladons and 10-17 mantas on my way back home! I’m making a saddle right now, and if you want more reasons to tame I have more, it can’t kill a mosasaur if it is good lvl, it can kill many packs of megs, mantas and anything else in the ocean, AND it is immune to the tusos grab, and immune to bothe the jellyfish and electric eel stings, easy tame if you are careful, yet so powerful. I’m still sad about my dolphin 😔, 1 🆙 = one rip for the dolphin I didn’t even have time to name 😢

In order to tame a Basilosaurus you need a croosbow and an acuatic mount that's enough strong to deal with mantas.

When you have all of this just shoot to a manta that's near the Basil and all of them will attack you, and here you wil pick the your crature and kill all of them.

Once you slayed all the mantas go with the Basil and start taming him pacificly.

Be careful because each time you feed it nearby cratures will come at you.

Have a tribe mate and have your own ichthyosaurus and have the tribe mate have one too.

1.find a basil of you choice.

2.have ur tribe mate aggro the mantras away.

3.check your basil out and feed it.

4.keep having your friend get away the mantas.

5.keep feeding it until you have your very own (or maybe not own maybe you'll share with your tribe mate) basilosaurus

MOBILE ONLY

ride an ichthyosaurus and feed it meat prime meat or kibble and I recommend using soothing balm,the reason why I use ichthyosaurus is because in ark mobile it is ignored by every other predator,so just hop on ur icthy and feed the basilo , also DO NOT DISMOUNT WHILE FEEDING ITS FOOD you can just perfectly feed it from the itchy while the mantas are not knowing that free Willy is being tamed

I saw my first Whale in the bay of Herbivore Island, I was like, hey, it’s a whale, i don’t have any proper sea tames (I had a sarco but that doesnt count) so I got raw prime and fed it that, I ran out of raw prime, Omygod omygod. I used normal raw and the taming bar DIDN’T GO DOWN! So basically I skipped the sharks and Ichthys and went strait for the Basilosaurus. IT IS AWESOME! I highly recommend a whale and they are very common around herbivore island (heck, there’s a new one in the bay now)

I got a spino with good hp and dmg plus a little oxygen then attracted the attention of mantas and sharks away fron the basi, then wiped em all out. Next I found something on shore for prime meat to feed it. It definitely helped that it was in a little cove area so no new predators would show up.

Kill off all megs in the area with a fast mount like a sarco, then shoot the basilo with a crossbow. Lead the mantas away (this will take a while) and either kill them or loose aggro. Head back to the whale, give it some kibble (may need 2 or 3 feeds) and now you have a bio toxin gatherer and cave runner! I was completely OK to do this with a lvl 151 sarco with a primitive saddle and a regular set of scuba. I recommend bringing lazarous, and a good crossbow.

When it comes to taming this guy, I personally like to hop on a high level spino. The spino easily deals with anything surrounding the basil, and then go ahead and start feeding it. I use kibble, it's a pretty fast tame, but the time between the first and second feeding feels like forever.