Young ones court danger on purpose
Across the animal world, adolescents don't just stumble into danger; they often seek it out deliberately. Risk-taking is a common feature of this life stage, not a peculiarly human failing.
BioMed
Adolescents across species must learn safety, status, courtship, and independence.
Extended parental care has trade-offs
Looking at when animals keep supporting grown offspring, and what it costs or gains them, gives humans a more realistic and kinder way to decide how long to help adult children. Continued support is neither simply indulgence nor simply wise.
Adolescence is learning to belong
Puberty is the body maturing, but adolescence is something more: learning to think, act, and even feel like a grown member of one's group. A young animal or person can be physically mature and still be socially a beginner.
Parents can hand down advantage
Some animal parents set up their grown offspring's start in life: red squirrel mothers give their territory to their young, often stocking it with food first. Some songbird mothers lead their older young to other flocks and introduce them to high-status mates. Privilege is passed down actively, not just inherited.
Four tests every young creature faces
Every adolescent, human or animal, has to solve the same four problems: staying safe, finding a place in the pecking order, courting mates, and feeding itself. How well each is handled during this window shapes the adult it becomes.
High rank blocks others' learning
Status does more than decide who eats first. In mice and monkeys, dominant individuals actively hold back how well low-ranking ones learn, so position in the hierarchy limits what a youngster gets to master.
Bullying has a function in nature
Bullying shows up in animals as well as people, with recognisable forms and purposes. Seeing what it accomplishes in other species is needed to understand why it persists among humans.
Predators disguise themselves as harmless
Those who prey on the young often hide their intent by looking unthreatening, the way some cuttlefish change their appearance to slip close. Naive youngsters are especially exposed because they haven't yet learned to read through the disguise.
Young peers form a horizontal tribe
Adolescents of very different species share more with each other than with their own elders. They face similar behaviours, setbacks and triumphs, and so make up a cross-species tribe defined by life stage.