To say "The Sharks" you will have to say des because there is more than one and requins because of "Sharks". So You will say "Des Requins"
a shark is 'un requin' (masc.) in French.
A Caribbean shark is 'un requin des Caraïbes' in French.
un requin mégalodon
a shark is called 'un requin' (masc.) in French.
le requin
im going to say shark
a shark
un requin
Un REQUIN
A fin (like a shark fin) is 'un aileron' in French.
Shark = Haifisch in German
In Portuguese, "shark" is said as "tubarΓ£o".
Since the megalodon is extinct and the whale Shark isn't I'd say no.