Fledgling kestrels in show unexpectedly high survival. Adults face more danger, especially in winter, with most deaths caused ...

After years of ospreys nesting atop the Bear Mountain Bridge overlooking the Hudson, road crews recently built nesting ...

Trump aims to send a crew to Mars by the end of his term, which Musk calls 'doable.' Astronauts question the time frame but said a flight would soon be possible ...