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Did you know?
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
![Areas of differing productivity and diversity in a wetland. (a) Typha dominates core habitats, while](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_45_22_20031944.jpeg)
![The skulls of living haplorhines differ from those of strepsirhines by having large brains, an enclo](https://biology-forums.com/gallery/47/medium_274477_04_02_15_12_29_04_20594136.jpeg)