I believe human brains undergo major rewiring during the teenage years. Does this also occur in other animals? A friend鈥檚 two-and-a-half-year-old horse seems to be showing 鈥渢eenage鈥漜haracteristics, repeatedly testing the boundaries of acceptable behaviour with the adults in the herd. It鈥檚 uncannily like my two teenage sons.
Hazel McGoff, Reading, Berkshire, UK