The onset of adolescence is a time of profound changes in motivation, cognition, behavior, and social relationships. Existing neurodevelopmental models have integrated our current understanding of adolescent brain development; however, there has been surprisingly little focus on the importance of adolescence as a sensitive period for romantic and sexual development. As young people enter adolescence, one of their primary tasks is to gain knowledge and experience that will allow them to take on the social roles of adults, including engaging in romantic and sexual relationships. By reviewing the relevant human and animal neurodevelopmental literature, this paper highlights how we should move beyond thinking of puberty as simply a set of somatic changes that are critical for physical reproductive maturation.
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Mucus is not particularly romantic for most humans. But for elephants, mucus is key to sexual arousal. Males depend on mucus in their trunks to detect a pheromone released by ready females. Now a study shows that a mucus protein may also help turn off males' sex drive by mopping up this pheromone. When a female elephant is in heat, her urine contains a pheromone called Z dodecenyl acetate. A male in search of a willing partner checks for this pheromone by dipping his trunk in puddles of urine or by probing a female's genital area.
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Arthritis affects women more so than men, particularly after menopause. Sex hormones may play a role in arthritis development, yet this is still unclear. Elephants have a similar lifespan to humans and develop arthritis and joint issues musculoskeletal impairments MI , but do not undergo menopause. Interestingly, many female zoo elephants do not exhibit normal ovarian cycles, closely resembling that in post-menopausal women.
Identifying elephants isn't difficult, but it requires using powers of observation and it takes a bit of practice. There are many different characteristics that you can use to identify an elephant: sex; body size; shape; length and configuration of the tusks; size and shape of the ears; ear venation patterns; notches, tears, holes in the ears. ElephantVoices has developed eight educational modules explaining how to read and understand these characteristics, also used in the Mara Elephants Who's Who database.