Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Spectral amplitude density from two lungfish (L. paradoxa) with different breathing frequencies.
  • fig. S2. Changes in the heart rate in L. paradoxa during an air-breathing event at 25°C.
  • fig. S3. The effect of autonomic modulation of HRV on mean oxygen uptake per breath in L. paradoxa at 25°C.
  • fig. S4. The rostrocaudal distribution of cell bodies of VPN in the brainstem of L. paradoxa.
  • table S1. Morphometric variables in the ultrastructure of transverse sections of the cardiac branches of the vagus nerve in L. paradoxa.

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