Janjucetus
...that although related to modern filter feeding baleen whales, the recently discovered prehistoric whale Janjucetus had large serrated teeth implying that it fed on large fish or even sharks?
...that although related to modern <a href="./Filter_feeder" id="mwBHs" rel="mw:WikiLink" title="Filter feeder">filter feeding</a> <a class="mw-redirect" href="./Baleen_whales" id="mwBHw" rel="mw:WikiLink" title="Baleen whales">baleen whales</a>, the recently discovered <a href="./Fossil" id="mwBH0" rel="mw:WikiLink" title="Fossil">prehistoric</a> <a href="./Whale" id="mwBH4" rel="mw:WikiLink" title="Whale">whale</a> <i id="mwBH8"><b id="mwBIA"><a href="./Janjucetus" id="mwBIE" rel="mw:WikiLink" title="Janjucetus">Janjucetus</a></b></i> had large serrated <a href="./Tooth" id="mwBII" rel="mw:WikiLink" title="Tooth">teeth</a> implying that it fed on large <a href="./Fish" id="mwBIM" rel="mw:WikiLink" title="Fish">fish</a> or even <a class="mw-redirect" href="./Sharks" id="mwBIQ" rel="mw:WikiLink" title="Sharks">sharks</a>?