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TIL: Texas has the highest maternal death rate in the developed world?

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DM9g TIL Saudi Arabia purchased a large chunk of land in Arizona just to grow hay and ship it back to their dairy farms.
N7Vp1 TIL that Carmel, IN has replaced almost all of their traffic lights by roundabouts. This led to an estimated 40% decrease in all accidents and 90% in fatal ones, saving $180,000 because of lower maintenance cost and several thousands of gallons of gas per roundabout per year
8abQK TIL where seedless watermelons come from. Much like how a donkey and horse can make a mule but the mule will be sterile, seedless watermelons are the infertile offspring between diploid (22 chromosomes) and tetraploid (44 chromosomes) seeded watermelons.
0dZNv TIL that pregnancies at the age of 35+ are considered "geriatric pregnancies."
oQ6R TIL of the North American X-15, a rocket plane from the 1950’s that achieved the manned airspeed record in 1967 when William J. “Pete” Knight flew it 4,520 miles per hour (7,274 km/h).