Jungle Dan lives by Arena Altas Wildlife Reserve here at the south end of Zancudo and was out in the road the other morning having a listen to our 'natural alarm clock'. Here on the South Beach end of Playa Zancudo in the early morning hours, troops of Howler Monkeys come to the edge of the beach road from out of the Mangroves Jungle to ring in the new day !!!
As their name suggests, vocal communication forms an important part of their social behavior. They each have an enlarged basihyal or hyoid
bone which helps them make their loud vocalizations. Group males
generally call at dawn and dusk, as well as interspersed times throughout the
day. The main vocals consist of loud, deep guttural growls or "howls". Howler
monkeys are widely considered to be the loudest land animal. According to
Guinness Book of World Records, their vocalizations can be heard clearly
for 3 mi (4.8 km).[6] The function of howling is thought to relate to intergroup spacing and territory
protection, as well as possibly to mate-guarding .
bone which helps them make their loud vocalizations. Group males
generally call at dawn and dusk, as well as interspersed times throughout the
day. The main vocals consist of loud, deep guttural growls or "howls". Howler
monkeys are widely considered to be the loudest land animal. According to
Guinness Book of World Records, their vocalizations can be heard clearly
for 3 mi (4.8 km).[6] The function of howling is thought to relate to intergroup spacing and territory
protection, as well as possibly to mate-guarding .
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