nests
... that termite nests can be nearly 7 m (23 ft) tall, that bald eagle nests can weigh 2 tonnes (4,400 lb), and that the extinct Sylviornis likely made a nesting mound 50 m (160 ft) in diameter?
... that <a href="./Termite" id="mwHA" rel="mw:WikiLink" title="Termite">termite</a> <b id="mwHQ"><a href="./Nest" id="mwHg" rel="mw:WikiLink" title="Nest">nests</a></b> <i id="mwHw">(pictured)</i> can be nearly <span about="#mwt16" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"7"},"2":{"wt":"m"},"3":{"wt":"ft"},"abbr":{"wt":"on"}},"i":0}}]}' id="mwIA" typeof="mw:Transclusion">7</span><span about="#mwt16" typeof="mw:Entity"> </span><span about="#mwt16">m (23</span><span about="#mwt16" typeof="mw:Entity"> </span><span about="#mwt16">ft)</span> tall, that <a href="./Bald_eagle" id="mwIQ" rel="mw:WikiLink" title="Bald eagle">bald eagle</a> nests can weigh <span about="#mwt17" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"2"},"2":{"wt":"t"},"3":{"wt":"lb"}},"i":0}}]}' id="mwIg" typeof="mw:Transclusion">2 tonnes (4,400</span><span about="#mwt17" typeof="mw:Entity"> </span><span about="#mwt17">lb)</span>, and that the extinct <i id="mwIw"><a href="./Sylviornis" id="mwJA" rel="mw:WikiLink" title="Sylviornis">Sylviornis</a></i> likely made a nesting mound <span about="#mwt18" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"50"},"2":{"wt":"m"},"3":{"wt":"ft"},"abbr":{"wt":"on"}},"i":0}}]}' id="mwJQ" typeof="mw:Transclusion">50</span><span about="#mwt18" typeof="mw:Entity"> </span><span about="#mwt18">m (160</span><span about="#mwt18" typeof="mw:Entity"> </span><span about="#mwt18">ft)</span> in diameter?