How long is too long to have an erection? Some say more than an hour is painful already, but this daddy longlegs has had one for over 99 million years. Luckily it has been trapped in amber for a while now.

Found in Burma, the critter's erect penis was forever hardened for all time.

http://news.nationalgeographic.com/2016/02/160201-arachnids-harvestman-penis-amber-fossil-animals-science/" onclick="window.open(this.href);return false;">National Geographic states that daddy longlegs have "honest-to-goodness penises, which they insert into genital openings next to the females' mouthparts."

Better than dying with a small penis, right? Good job, daddy longlegs.