He had caught 127 " Polypterus senegalus " and 36 " Polypterus lapradei " but failed to obtain the fertilised ova he wanted.
22.
He had caught 127 " Polypterus senegalus " and 36 " Polypterus lapradei " but failed to obtain the fertilised ova he wanted.
23.
He continued to work on his fishes in Cambridge but yearned to make another attempt on " Polypterus " despite the health and safety risks.
24.
""'Polypterus weeksii " "'is a fish in the Polypteridae family found in the central basin of the Congo River.
25.
The team of researchers raised juvenile Polypterus on land for nearly a year, with an aim to revealing how these'terrestrialized'fish looked and moved differently.
26.
Lungfish larvae also have external gills, as does the primitive ray-finned fish " Polypterus ", though the latter has a structure different from amphibians.
27.
""'Polypterus palmas " "'is a fish in the Polypteridae family found in freshwater environments within a demersal depth range in tropical climates.
28.
He placed " Polypterus " and " Calamoichthys " within this order, allocating them to a new tribe, Polypterini, which he created especially for them.
29.
Perhaps the embryology of " Polypterus ", lungfish and related groups could help to establish which group of fishes had given rise to amphibians and hence to all tetrapods.
30.
In 2014 Researchers at McGill University ( published in the journal Nature ) turned to Polypterus to help show what might have happened when fish first attempted to walk out of the water.
