This species has developed a series of adaptations for navigating underwater during short periods of time. Its nostrils and reduced ears close underwater, and due to having its eyes protected by a full nictating membrane it mostly relies on its highly sensitive long whiskers for detecting its prey or other obstacles. Nonetheless, this species has good vision on land and uses it for detecting potential prey instead of echolocation, which has been lost in favor of smaller ears that provide better streamlining.
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