Arts & EntertainmentCarlsbadCitiesCommunityCommunityNewsDiscovery Center exhibits mastodon bones found in North CountystaffJanuary 29, 2021January 29, 2021 January 29, 2021January 29, 20210594 CARLSBAD — Several pieces of natural history are on display at the Agua Hedionda Lagoon Foundation’s Discovery Center. Four mastodon bones are currently on temporary...