dolphins social behavior

be regarded as

=be treated as--viewed

intelligent 聰明的

intelligence 智力

creature動物--creat 創(chuàng)造

pods of一小群

abundant--abundance 充裕（的）

superpod超級海豚群

rigid-生硬的，固定不變的

bond 羈絆 bonding綁定

altruism 利他主義 species

calf幼崽

shallow--skin deep淺薄

strand擱淺

protect form

sponge海綿

snout動物的嘴

provision

transmit轉換

Using ipad as notebook as well as other behavior of studying proves students‘ intelligence.