Quotes About Biology

most expensive in the body, second only to the heart. Neurons may be small, but they're costly to make and maintain, consuming about ten times more energy relative to their size than other cells.

It's a telling example of how basic owl science has boosted human medicine—and how an owl's eyes and ears work together.

Did the crows' bill shape and specialized vision predispose them to tool crafting and use? Or did their tool-use behavior in response to unusual ecological opportunity—those delicious hidden grubs—gradually shape their visual system and bills? This is the sort of mysterious causal relationship biologists both love and hate.

A woman was not considered related to her own child by the bizarre laws of England. The man's seed contained the whole of the baby, so they said, who nestled inside the woman for most of a year before she bore it. This made the child the father's, not the mother's.

A heart is made of proteins built by amino acids, animated by electrical impulses.

After six months of Premarin, I had another round of levels taken. I was found to have 59 nanograms of estrogen in my system. The average for an adult male is 6. The mean for females is 26.

Take the planarian flatworm. You can slice it in two and each part will grow into a new worm. The hydra, a freshwater creature, can actually regenerate body parts, and the sea anemone doesn't appear to experience senescence at all." I

You should try getting some sleep." Sloane frowned. "Giraffes only sleep four and a half hours a day." -Sloane

Why do guys love to fart?" "They're expressing themselves.

L'hérédité a ses lois, comme la pesanteur.

It's weird to have something that's mine-not-Ma's. Everything else is both of ours. I guess my body is mine and the ideas that happen in my head. But my cells are made out of her cells so I'm kind of hers.

It's weird to have something that's mine-not-Ma's. Everything else is both of ours. I guess my body is mine and the ideas that happen in my head. But my cells are made out of her cells so I'm kind of hers. Also when I tell her what I'm thinking and she tells me what she's thinking, our each ideas jump into our other's head, like coloring blue crayon on top of yellow that makes green.

It is essential that we realize once and for all that man is much more of a sex creature than a moral creature. The former is inherent, the other is grafted on.

Men have a brain and a penis, and only enough blood to supply one at a time.

Pourquoi la nature aurait-elle accouché d'un poisson si elle n'avait pas inventé l'eau..

neuroscientists have discovered that fear activates the amygdala, the section of the brain that is responsible for detecting threats.

Why is it that a worm can regrow most of its body, but we can't replace so much as a finger? I am left with the troubling conclusion that the worm's survival may, in the grand scheme of things, be more important than my own.

The trillions of microorganisms we harbor in our bodies, collectively known as our microbiome, outnumber human cells 10 to 1.

yeast produce esters in order to attract insects, hoping they will pick up the yeast and move it around. This makes bugs unwitting accomplices in the dance between sugar and yeast.

The male doesn't eat - it doesn't even have a mouth or an anus - so it does nothing but mate until death.

But a male tree produces only small, well-behaved flowers—that is, if your definition of well behaved includes spewing plant sperm into the air for weeks on end.

can take over a week for a Venus flytrap to devour its prey, and it may only eat a few bugs in its life. Although people can force a trap to close by running a finger along it, carnivorous plant enthusiasts consider this rude.

Qu'en savez-vous? dit le docteur. Mais quoi qu'il en soit, le nombre des épouses varie simplement comme le mode d'alimentation de l'espèce. Les lapins, les Turcs, les moutons, les artistes, et d'une façon générale tous les herbivores sont polygames; les renards, les Anglais, les loups, les banquiers, et d'une façon générale tous les carnivores sont monogames.

Biology, list history, is not built with 'if's.