trunk – n. the long, flexible nose of an elephant

herd – n. a group of animals that live or are kept together

mature – adj. not young : middle-aged or older

contribution – n. the act of giving something : the act of contributing

pattern – n. the regular and repeated way in which something happens or is done

breeding –n. the process by which animals produce and care for their young; related to producing and caring for the young

conservation – n. the protection of animals, plants, and natural resources