Yes they are highly specialised to the ruff world of snow in the Himalayas. No other cats are specialised to live there.
No, "highly talented" is not hyphenated. "Highly" is an adverb that modifies "talented." You only need to use a hyphen to connect two or more words that function together as an adjective to modify a noun - for example, "top-performing salesman" or "high-dollar suit" would require hyphenation.
A person with highly specialised knowledge of the waterway and who [usually] boards a ship to guide it and help navigate the waterway.
It is not hyphenated.
Motorcycle is not hyphenated
No it's not hyphenated.
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
what is specialised material
Specialised support software is software that is specialised to support people.
No, "hardworking" is not hyphenated.
Yes it should be hyphenated.
It can be. Some words can be seen both hyphenated and non-hyphenated.