A declaration signed by more than 280 NASA employees, including astronauts, opposes budget cuts proposed by the Trump administration. The declaration highlights how these changes have caused damage to NASA's mission and its workforce. Studies reveal that the sex of babies can be influenced by the presence of several siblings of the same sex, with factors like vaginal pH playing a role. In marine biology, bottlenose dolphins have developed a unique hunting method using sponges, despite challenges it poses for their echolocation abilities.
"The last six months have seen rapid and wasteful changes which have undermined our mission and caused catastrophic impacts on NASA's workforce," says a declaration signed by more than 280 NASA employees past and present, including at least 4 astronauts.
In families with three boys, there is a 61% chance that the next baby born will also be male, suggesting that the sex of a baby can be influenced by having several siblings of the same sex.
Some bottlenose dolphins (Tursiops aduncus) use a sponge to flush camouflaged fish out from the seafloor, a skill that is rare because it interferes with their echolocation.
Maternal factors such as changing vaginal pH and certain genetic variants could explain the phenomenon of sex determination, with possible paternal influences also not assessed in the research.
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