These effects have not been consistently observed in research studies, however. These findings have not been observed in humans. However, no such transition had yet been observed experimentally. Nevertheless, activity may be observed during daytime. This pattern clearly has not been observed. However, monomers have not been observed. Such neurons have been directly observed in primate species. It may, however, be observed in almost any area. Despite this, this behaviour has not commonly been observed. Mating has rarely been observed in sharks. Scavenging has been observed, but very rarely. Macrolide resistance has also been observed. Humpback whale births have been rarely observed. Alloparenting has been observed in this species. Particle has not yet been observed.