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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 ...
Usually, a sexually mature male is accompanied by a younger male who will
assist him in readying the female for courtship and mating. Once a sexually
receptive female is identified the two males will work together to stimulate her.
Through a ...
Polar bear females are good mothers, but the male will have no part in rearing
his offspring and in fact is their greatest enemy. Male polar bears live completely
solitary lives, coming together with females only to mate. Males will prey on any ...
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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