The second article I decided to review is talking about the revival of one of North Americas rarest bee known as the Macropis Cuckoo. This bee has just had its known range of inhabitance greatly expanded. Recently in Canada an individual report shed light on the survival of the species which is a miracle considering the biology of this special bee, being a nest parasite of other groups of bees that in return have very specialized dietary needs makes it very hard to survive. The host bees are dependent on plants of the lysimachia whose flowers produce oil, which is fed to the larvae. Meaning both of these bees need this plant to survive, one needs the oil to feed its larvae while the other one needs the host’s nest. This reliance has evolved the female cuckoos to develop an ability to find their hosts nests by the smell of the floral oils.