Blogs & Videos: Series

Peregrine Falcons Removed from IL Endangered List

Peregrine Falcons have their share of claims to fame—with a diving speed of over 200 miles per hour, they’re the fastest animals in the world, and they’ve adapted from living on rocky cliffs to a different kind of “mountain”: Chicago’s skyscrapers.  But in 1951, there were none left in Illinois, and it looked as if the species would be wiped out of North America entirely. Today, thanks largely to the Chicago Peregrine Program headed by The Field Museum’s Mary Hennen, Peregrines are flourishing to the point that they’re no longer in immediate danger.

New Discoveries in How Animal Moms-to-Be Feed Their Babies

  Pop quiz—what kinds of animal mothers feed their babies before birth? The first (and maybe only) ones to come to mind are probably mammals like us—moms-to-be funnel nutrients from their blood supply right to their developing embryos through an organ called the placenta; the moms literally “eat for two.” That’s a different kind of nourishment than you see in most other animals—the majority lay eggs with a nutritious yolk for the embryo to use as it develops.

Sawfish “Virgin Birth” Discovery

“Life, uh, finds a way.” Any Field Museum fan worth their salt probably remembers the scene in Jurassic Park where Jeff Goldblum’s character explains that even though all the dinosaurs in the park are female, they might still find a way to reproduce. But this isn’t science fiction—Field Museum scientists have recently helped discover that smalltooth sawfish, critically endangered shark relatives, sometimes reproduce through “virgin birth.”

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