Dear&nbsp;all,&nbsp;<BR>&nbsp;&nbsp;&nbsp;&nbsp; <BR>I write to ask if somebody could help me with references about age determination in Mysticetos, applicable methodologies, earplugs...&nbsp;&nbsp;&nbsp; <BR>Sought in the internet I found little thing about the theme.&nbsp;&nbsp;&nbsp; <BR>If you could aid me, I would be very thankful.&nbsp;&nbsp;&nbsp;&nbsp;<BR>Thanks&nbsp; &nbsp;for the attention.&nbsp;&nbsp;&nbsp; <BR>Hugs for all,<BR><BR>GUSTAVO A. C. TOLEDO<br>Mastozoologia<br>Departamento de Sistemática e Ecologia/CCEN<br>Universidade Federal da Paraíba<br>58051-900<br>João Pessoa, PB, Brazil.<br>Phone: +55 83 32167769<br>E-mails: gustavoact@yahoo.com.br / gustavoact@gmail.com<br><br>Residential address:<br>Hildebrando Tourinho, nº 570 <br>Residencial Firenze Apt. 203<br>Miramar<br>58032-080<br>João Pessoa, PB, Brazil.<br>Phone: +55 83 32475741 / 88015443<p>&#32;
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