# worldpenguinday knowyourpenguins winteriscoming byesummer lastdayofsummer seasons

Diencephalon: midsagittal section, medial view of the right hemisphere. From Gilroy and MacPherson's Atlas of… https://t.co/6ceKNJD4KW

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2017-02-26

It's finally the first day of fall! (In the Northern hemisphere.) Here's some bad news abo… https://t.co/k4trrc19ie

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2016-09-22

It was the last day of Summer today in the Southern Hemisphere.

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2016-02-29

For those in the Eastern Hemisphere...

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2015-12-25