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Many fish in the ocean are broadcasters — male and female release sperm and
eggs simultaneously in the open water and allow them to take their chances.
Nest-building gives the egg and sperm a greater chance of encountering one ...
Males frantically search the schools for females, their head flushing red as they
approach. Once in contact with a female, the male will encircle her, and will insert
sperm into the mantle cavity of the female with the help of a specialized tentacle.
Belugas, dolphins, narwhals (NAR wal), orcas (sometimes referred to as killer
whales), pilot whales, porpoises, and sperm whales are all considered toothed
whales. Beaked whales, a group of very mysterious and seldom-seen animals,
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I purchased all three books in this set and taught a short course to a small group of high school kids. We had a great time with this course! We did 10 experiments and held very intense all-day ... Read full review