How to animate and make blood? 
I think the best way to make it, is add an UVsphere.
then push “o” and use the “smooth falloff” to give it shape in edit mode.
when you have a good shape, set green and blue to zero.
in the shaders window set “spec” to 1.4 and in the mirror & transp click on “Ztransp” and set “fresnel” to 1.
Go to the textures and use as “texture type”: “Marble” then go to the MATERIAL BUTTONS and set in the “map to” window the blue and green to zero.
I hopes it help
Oh, yeah, thanks 
Okay we now have a blob of blood. How about animation? Especially spray, say from a violent knife or axe attack. Would you use an emitter? Or go about spreading your blob everywhere. Sorry if I sound too tongue in cheek. But it really is an interesting topic that is definately one of the roles played out by 3D today in movies, games, and television. So I think this ought to be something we can do in blender very well. But at the moment I am failing miserably, anyone have some more tips?
I got a great tip, if you’ve got patience? Coming soon Blender 2.4 - check avi out http://www.blender.org/bf/apedrop_divx.avi Can’t wait to splash 
Okay so the splash looks great. Any more info on exactly what did that? Fluid dynamics engine?
Aha
http://www.blender3d.org/cms/Newsitem.607+M538b9526d7d.0.html indeed fluid dynamics is the culprit. In the meantime does anyone know how to make a nice splash of blood coming from say knife attack or unholy bite to the jugular.