Yes. In Palworld v1.0.3, Shaolong can get Ferocious through currently verified methods: it is in the standard random pool. Ferocious is in the standard random passive pool in v1.0.3, so it can appear on a caught or bred Shaolong and be inherited from parents that have it. The facts behind this answer are graded B and come from 2 registered sources.
Reason
Attack +20%
Rank
3
Random pool
Yes
Other Pals
299
Shaolong breeding recipes
1
Fixed passives on Shaolong
0
Custom slots available
4
Verified evidence claims behind this verdict
1
Shaolong parent pairs with a direct source of Ferocious
1 of 1
Ferocious breeding route for Shaolong: 1 of 1 parent pair include a direct source (Shaolong).
Why
Ferocious is in the standard random passive pool in v1.0.3, so it can appear on a caught or bred Shaolong and be inherited from parents that have it.
How Ferocious can be acquired on Shaolong in v1.0.3
Current method
Available for Shaolong?
Note
Fixed / innate
No
Shaolong is born with no fixed passive.
Random pool (catch or hatch)
Yes
Ferocious is in the standard random pool, so it can appear on a caught or hatched Shaolong.
Implant (Surgery Table)
No
Ferocious: no verified item method grants it here.
Breeding inheritance
Yes
Shaolong can inherit Ferocious along a verified breeding chain, under the standard passive-inheritance rule this dataset has not independently sourced.
Verdict per requested component on Shaolong in Palworld v1.0.3
Ferocious is in the standard random passive pool in v1.0.3, so it can appear on a caught or bred Shaolong and be inherited from parents that have it.
B B · 1 source
What changed since v0.7.0
What changed since v0.7.0
Component
In v0.7.0
In v1.0.3
Ferocious
Not obtainable in v0.7.0—
Currently obtainableit is in the standard random pool
How it reaches this Pal
Ferocious is in the standard random pool, so it can appear on a caught or hatched Shaolong.
299 Pals obtain Ferocious directly in v1.0.3 (Demon Eye, Depresso, Digtoise, Dinossom and Dinossom Lux).
Shaolong breeds only from two Shaolong parents in v1.0.3, so no other species can bring Ferocious into its line.
5 of 299 shown
What you can do now
Ferocious is in the standard random pool, so it can appear on a caught or hatched Shaolong.
Alternative: Shaolong can inherit Ferocious along a verified breeding chain, under the standard passive-inheritance rule this dataset has not independently sourced.