Anything living that has bones would certainly be destroyed by lava.
What can't lava melt?
The short answer is that while lava is hot, it's not hot enough to melt the rocks on the side of or surrounding the volcano. Most rocks have melting points higher than 700℃. ... But lava flows can set fire to grass, bushes, and trees.
What metal can withstand lava?
Since lava is typically around 2200 F, Platinum and Titanium would both be fine since they both have melting temperatures above 3000 F. Also, some ceramics could probably withstand these temperatures.