An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Gorelick R, Olson K.Gorelick R, et al.J Exp Zool B Mol Dev Evol. 2013 Jul;320(5):286-94. doi: 10.1002/jez.b.22499. Epub 2013 May 29.J Exp Zool B Mol Dev Evol. 2013.PMID: 23720437