What do you think of the sudden rise of prehistoric fish once thought to be extinct?

Question

Look at all the talk about global warming and the discussion of the earth becoming super-heated. Now look at all the new species of fish being found in the oceans. What do you think has sprung, this recent "explosion" of previously thought of extinct fish, to resurface as never to have been extinct. The Giant groupers, giant squid, the goblin shark, and the celocanth off of africa???

Answer 1

The Celocanth was not extinct.  The Natives have been catching and eating them for hundreds of years.  Some people think just because they don't see it, it doesn't exist.  

You are mistaken about the "explosion" of previously extinct fishes.  Everything else you listed was never thought of as extinct.

Answer 2

Hardly an explosion. The giant grouper has been split into two species on the basis of genetic evidence and is not a newly-discovered species. Giant squid [google "kraken"]have been known for ages, as you would know if you liked Victor Hugo (Toilers of the Deep) and Jules Verne (20,000 Leagues Under the Sea). Goblin sharks and coelocanths are deep-sea species and there have been many such discovered since we have been able to explore their habitat better.

Answer 3

These animals haven't suddenly reappeared. Humans simply didn't have the technology or interest to find them in the past. Other than the coelacanth I don't believe that any of the fish you cited were ever thought to be extinct.

The coelacanth was discovered in 1938. Giant squid have been known since ancient times. The giant grouper is a common animal in its range. The goblin shark is a deep-sea fish which explains why humans would not have known of its existence until recently.