Keen Smell. The yeti has advantage on Wisdom (Perception) checks that rely on smell.
Snow Camouflage. The yeti has advantage on Dexterity (Stealth) checks made to hide in snowy terrain.
Claw. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit:2 (1d4) slashing damage plus 2 (1d4) cold damage.
Yeti tykes are as volatile and mean as their parents, their fearsomeness diminished only by their size. Standing 3 feet tall on average, they like to bully creatures of their height or smaller. But they are easily intimidated by bigger and stronger creatures. A cowed yeti tyke can be controlled, at least for a while, but raising one to be anything other than a savage, flesh-eating predator is incredibly difficult (though not impossible).