Check out this site, it has some substantial information on this biome.
Any of the trees mentioned under their plant section is classic taiga. Find animals in the region that eat from pine-cones or the nuts or seeds of these trees for your herbivores. This environment has some unique flowering plants too, those would be great to find for insects that may be unique herbivores, and possibly have some interesting winter survival strategies you could talk about. Carnivores are not hard to come by, check out that link above, it has some good examples in the animals section.
Hope it helps, good luck on the project. It's ok to ask help, but i strongly suggest you get in the habit of doing your own project rather than asking others to do the research for you.