[PistolPaknMama]

Tiktaalik was a predator with sharp teeth, a crocodile-like head and a flattened body.

So it had crocodillian carachteristics but not human? All we need now is a crocodile that walked upright and/or had opposable thumbs. The tiktaalik is hardly a missing link. There are lots of amphibious animals that may have evolved from aquatic animals as a result of drought. I saw a documentary not long ago about some modern-day aquatic animal in Africa that either evolves into an aquatic animal or amphibious animal based soley on how rainy the breeding season is. Sorry, don't remember what channel, the name of the animal or have a link. But I did see it so it must be true! :-)

[furball4paws]

The tiger salamander is one such critter:

http://www.npwrc.usgs.gov/narcam/idguide/atigrin.htm

Can be a nasty predator and cannibal or a docile aquatic thingy, depending on the environment. Probably not what you were referring to, but similar, no doubt.

[VadeRetro]

So it had crocodillian carachteristics but not human? All we need now is a crocodile that walked upright and/or had opposable thumbs. The tiktaalik is hardly a missing link. There are lots of amphibious animals that may have evolved from aquatic animals as a result of drought.

So a transition from fish to amphibians (that is, at the taxonomic level of "class") is not a transitional form? Move the goalposts much?

Is it also no big deal if an amphibian becomes a reptile? If a reptile becomes a primitive, egg-laying mammal? If a primitive mammal becomes a placental mammal? If a placental tree-dweller becomes a lemur-like primate? If a primate becomes a monkey? If a monkey becomes an ape? If an ape becomes a man? None of those are any harder than gill-breathing fish to lung-breathing, land-living, tetrapod.