truTV: Not Reality. Actuality.

Biologist Michelle Solensky, of Ohio's College of Wooster, reported late last year in the journal Animal Behavior that male monarch butterflies are such calculating inseminators that they even decide the optimal level of sperm necessary for reproductive advantage. While injecting fluid, the male can "selectively" determine how much of it will be fertility cells, depending on how much residual sperm the female holds from previous suitors (and thus to always inject more than the other guys did). Solensky told New Scientist magazine that the penis acts as a kind of "dip stick" to check the quantity already present.

"Reproduction is no fun if you're a squid," said a biologist at the University of Groningen in the Netherlands, referring especially to the deep-sea squid. Finding a mate a mile down in pitch-darkness is hard enough, but the combination of males that are smaller and fearful of being overpowered and females whose reception of sperm involves being stabbed makes the insemination process especially traumatic. Sperm deposits can be extensive and burdensome to the female and are delivered by the reckless slashing of the skin by the male. In fact, according to a December report in Germany's Der Spiegel, in the darkness the male sometimes misses the female altogether and inseminates himself.

Karma: A few animals were rescued from an early morning fire at a Humane Society shelter in Oshawa, Ontario, in December, but cats suffered heavy casualties, with nearly 100 perishing. The Fire Marshal's office said the blaze was probably started by mice chewing through electrical wires.

More than 1,000 new animal species were discovered in the last decade in the area surrounding the Mekong River that runs through Myanmar, Cambodia, Laos, Thailand and Vietnam, including striped rabbits and a spider bigger than a dinner plate. Also found was a pink millipede that secretes cyanide, according to a December World Wildlife Fund report.

The British Federation of Herpetologists announced in November that the number of reptiles kept as pets in the U.K. is probably greater than the number of dogs (8.5 million to about 6 million, with cats at 9 million). One benchmark the federation uses for its calculation is the booming sales of reptile food, such as locusts, frozen rodents and crickets (now about 20 million a week).

Twice recently (in November, off Atlantic Beach, N.C., and in October, off Amble, Northunderland, England), anglers encountered (and rescued) dogs that were swimming about a mile from land and headed toward the open sea. The pooches, a Labrador retriever and a cairn terrier, were both said to be disoriented and uncooperative with rescuers.