Complex sentence: A young La Plata dolphin was rescued in 2011 off Montevideo, Uruguay, and in February 2016 a young dolphin died on the beach of Santa Teresita, Argentina, after being passed around by a crowd who where posing for selfies with it.
Split into simpler sentences: A young La Plata dolphin was rescued in 2011 off Montevideo, Uruguay. In February 2016 a young dolphin died on the beach of Santa Teresita, Argentina, after being passed around by a crowd who were posing for selfies with it.