sport. >> reporter: because they may not have a gold medal but they'll always have each other. >> until next time, shib-sibs out. art amy robach, sochi, russia. >> they are really great. >> yeah. >> also the curling champion siblings. erika brown and craig brown. dubbed first family of curling. stepfather steve is in the curling hall of fame. if you didn't know they have a curling hall of fame, they have one. >> and mom is involved, too. so between them, 26 national championships. also siblings in snowboarding, erin and taylor gold. >> so with sibling rivalry, the youngest ones want to keep up. that's what happened to me. my brother is younger than me but got better at everything. >> oh, but you were the trail blazer. >> announcer: this is abc's "world news now." informing insomniacs for two decades.