The Fisher Price Little People's Noah's Ark is fun and sturdy, and has been a hit with my 2 year old.  The characters are interchangable with other Little People sets, so the animals often migrate to the Fisher Price barn.  The animals come in sets of two, and there are extension packs that I have seen (but not purchased) to expand the collection of the pairs of animals.  They are durable and not choking hazzards, great for young toddlers.  The newer versions of this toy seem to include Noah's wife, but mine does not.  Noah (and the other people from other similar sets) have child-like features...