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Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.
Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
![The bobcat population has seen declines in the American Midwest, but is generally stable and healthy](https://biology-forums.com/gallery/47/medium_27638_22_04_12_8_48_59.jpeg)
![The tolerance of male lions towards the cubs varies. They are, however, generally more likely to sha](https://biology-forums.com/gallery/47/medium_27638_22_04_12_9_12_32.jpeg)