# I am the Watcher. I am your guide through this vast new twtiverse.
#
# Usage:
# https://watcher.sour.is/api/plain/users View list of users and latest twt date.
# https://watcher.sour.is/api/plain/twt View all twts.
# https://watcher.sour.is/api/plain/mentions?uri=:uri View all mentions for uri.
# https://watcher.sour.is/api/plain/conv/:hash View all twts for a conversation subject.
#
# Options:
# uri Filter to show a specific users twts.
# offset Start index for quey.
# limit Count of items to return (going back in time).
#
# twt range = 1 1
# self = https://watcher.sour.is/conv/xch5giq
Study: laughter is common among more than 65 species of animals
, \\- Optimist Daily
_Stephan: There is so much bad news, I thought readers might enjoy this report.
Citation: This story is based on a research paper, "Play vocalisations and human laughter: a comparative review": https://www.tandfonline.com/doi/abs/10.1080/09524622.2021.1905065_
![](https://i0.wp.com/www.schwartzreport.net/wp-content/uploads/2022/02/Screen-Shot-2022-02-04-at-11.02.50-PM.jpg?r ... ⌘ Read more_