We often think of April 1st as more of a modern event, because it's sort of stupid and we think of our ancestors as being more serious.  

Not so.

Even the eminent biologist Charles Darwin got pranked by his shipmates on the HMS Beagle, April 1, 1832, as evidenced by his diary. 

While March 31st only noted a "A fine rattling breeze" the following day had him excited to make a new discovery:

The reboot of Cosmos was on the must-see television list for many; it is a prime-time non-fiction science program, with one of the best hosts in science media, a generous budget, airing on 10 channels, and even had music by the guy who did Captain America. Excitement was high.

Then it actually began. It had an alarming non-science gaffe - the story of the likely insane philosopher Bruno reconfigured to be...what exactly, no one is sure. 25% of Episode One was devoted to talking about mean old religion in the middle of a narrative about cosmology only to have Neil Tyson then dismiss the entire story as Bruno not being a scientist anyway.

The Rhynchohyalus natalensis in a recent paper was caught about 1000 meters under the Tasman Sea and it has two pairs of eyes, allowing it to spot danger from every angle. One pair is upward-facing tubular eyes, to spot danger from above, while another set is on the side of its head, to detect bioluminescence from deep sea creatures.

The second type of eye is typically associated with invertebrates. The authors write that this is only the second instance in a vertebrate, after Dolichopteryx longipes, with both reflective and refractive optics.  

I particularly liked the description of how they modeled the optics and image focusing. The authors have the same question I have; this is cool, so why isn't it more common?