Archives for category: animals

Cats don’t purr because they are happy, they really just use it as a way to heal themselves and make their bones denser.

Scientific American (source)

That cat’s bones are SO DENSE.


The differences between venom and poison:

Poisons must be absorbed via a mucus membrane (lungs, intestinal lining, nose, etc.).

Venoms must be injected, from a special appendage for this purpose.

It seems like venomous animals are more active with their toxins, (doing it on purpose) while poisonous substances are more passive (i.e. they must be eaten or inhaled). I say substances because not only animals can be poisonous, but things like plants and bleach are too. However, only animals are venomous.


Here’s an interesting related video:


The Roaming Naturalist (source)

List of Venomous Animals (wiki)


– Catnip does get cats “high,” but it may be more of a sexual / pheremone reaction than a chemical high like that found in humans using marijuana.

– It has different effects depending on whether it is consumed or inhaled, and even cats with no sense of smell can be affected.

– Humans have used catnip (usually in teas) as a mild sedative and to relieve joint pain.

Scientific American (source)

(The video speaks the truth, and seems to have gotten many of its facts from

Pigeons are superstitious. In other words,they (like humans) fall victim to the Regression Fallacy. They believe that random actions affect certain outcomes, like how not washing your jersey will help your team win the big game.

PsychClassics (original B.F. Skinner experiment)

Psychologist World (summary / source)


Corvids (crow family) can hide their food in up to 200 different places, remembering each one and even returning to each before the food spoils.

Io9 (source) (source)

(Both of the above linked articles cite numerous sources of their own and are worth a read.)

– Polydactyl Cats (having more than the normal 5 toes in front / 4 toes in rear) on all four paws is very rare.

– They were at once considered bad luck (instances of witchcraft) and good luck, as sailors would bring them aboard ship for their excellent mousing ability.

–  Teddy Roosevelt had a polydactyl named Slippers.

The Straight Dope (source)

Some parrot species get each other’s attention by doing imitations of their intended conversation partner, rather than call each other by name. (source)

So many things about octopodes!

– After mating, males get a form of dementia and sometimes chew their own arms off.

– A Hawai’ian creation myth states that the universe has gone through several changes, and the only survivors from the last one are octopodes, which are aliens.

– The tiny blue-ring octopus has enough venom to kill 26 people in only a few minutes.

Read more at The / Sexy Beast.

“Rabbits are altricial, having young that are born blind and hairless. In contrast, hares are born with hair and are able to see (precocial).”

Wikipedia (source).

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