Evidence that Neanderthals were fully human:
The FOXP2 gene supports Neandertals being fully human
http://creation.com/foxp2-gene-neandertals-human
Taking a crack at the Neandertal mitochondrial genome
http://creation.com/taking-a-crack-at-the-neandertal-mitochondrial-genome
National Geographic unveils ‘Wilma’ the Neandertal lady
http://creation.com/national-geographic-unveils-wilma-the-neandertal-lady
Correction; they were 99.5% human, just like chimps are 95% human.
“The FOXP2 gene supports Neandertals being fully human
http://creation.com/foxp2-gene-neandertals-human";
From the site:
“The FOXP2 proteins are identical in chimp, gorilla and rhesus monkey. Orangutan and mouse differ by only two amino acids outside the Q regions ... In contrast to these five sequences, the human version differs at two positions.”
—Considering how extremely slow the FOXP2 varies, even the most extreme of those who believe Neandertals should be considered a wholly separate species would have been astonished if the FOXP2 gene showed any differences at all between humans and Neandertals. The genetic evidence (so far), and their anatomy supports them being a human sub-species (IMO).