Błędnie: My daughter was watching a nature programme about delphiniums. She was laughing at those lovely creatures and clapping her hands each time she saw them jump. Poprawnie: My daughter was watching a nature programme about dolphins. She was laughing at those lovely creatures and clapping her hands each time she saw them jump.
"Delphinium" to po angielsku 'ostróżka' (roślina). 'Delfin' to "dolphin".