«Our study established a clear function in
lungfish for these increases in heart rate in maximising oxygen uptake during each air breath that has not been definitively demonstrated for RSA in mammals.
Not exact matches
The
lungfish ear is a good model
for the ears of the first terrestrial vertebrates.
It was Charles Darwin who coined the term «living fossil» to describe extant creatures, such as the gar (another Great Lakes resident) and the
lungfish, which have been present
for many millions of years in the fossil record yet appear to have undergone very little anatomical change.
A
lungfish that uses its fins
for walking could help to unravel the steps our distant relations took in order to move from water to land.
Two of these, the South American and South African
lungfishes, are well adapted to air breathing and can survive on just their lungs
for extended periods.
Further, the aerial hearing of
lungfish and salamanders suggests the first land animals heard well enough in air to provide a functional steppingstone
for the evolution of the middle ear.
The eel - like body and scrawny «limbs» of the African
lungfish would appear to make it an unlikely innovator
for locomotion.
December 12, 2011 A small step
for lungfish, a big step
for the evolution of walking The eel - like body and scrawny «limbs» of the African
lungfish would appear to make it an unlikely innovator
for locomotion.