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A three - legged Leo and his comrade made a record - breaking swim across a river pour with crocodiles and hippos in a despairing search for sexual practice , researchers have revealed . The pair has now been seen traversing the treacherous Kazinga Channel in Uganda six time , include a nearly mile - long ( 1.5 kilometers ) swim that was captured on pic .

This is believed to be the longest swimming by alion(Panthera leo ) ever document : Normally , Lion ' maximum observed swimming distances are around 330 feet ( 100 meters ) . The Herculean feat is even more remarkable consider that one of the brother is missing a limb . " It ’s moderately incredible , the guy ’s get three wooden leg , " saidAlex Braczkowski , result author of a subject field document the encounter .

Ugandan lion Jacob with standing in the dark in shrubland with half of his leg missing

Jacob, one of the lions that made the record-breaking swim, lost part of his leg in a poachers trap.

" He was swimming [ at a ] much slower speed compare to [ his crony ] . But he made it , " Braczkowski , a research worker at Griffith University in Australia and scientific conductor of the Volcanoes Safaris Kyambura Lion Project , tell Live Science .

Cameraman Luke Ochse film the two Lion — Jacob , who fall behind his foundation in a poachers ' ambush , and Tibu — swimming across the channel that connects the George and Edward lakes on Feb. 1 with a drone carrying a thermal camera . The big Caterpillar initially attempted the swim three meter ( the first attempt captured in the footage above ) but were forced to turn back after run into eitherhippos(Hippopotamus amphibius ) or Nilecrocodiles(Crocodylus niloticus ) , both of which can shoot down lions in the water .

The subject , which was partially funded by Northern Arizona University , is due to be put out in the diary Ecology and Evolution .

brother lions jacob and tibu lying together in dark shrubland

The brothers Jacob and Tibu are believed to have initially crossed the river in search of females, before losing fights to rival males and having to make a return journey.

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Jacob and Tibu are in a shaky position in their homeland . The Leo the Lion universe in the region has been decimated over the last few decades , mainly driven by human - wildlife conflict and poaching , Braczkowski said . There are estimated to be around 40 lions left in the Queen Elizabeth National Park , and the universe is under pressure sensation from a sex ratio problem . In a sizable king of beasts population , females outnumber male person two to one . But among this Ugandan population , there are two times more males than female , putting huge pressure on the male to find a match .

The crony made the initial swim because there were no females in their territory . They then had to make a reappearance journey — which was captured on celluloid — after a clash with two other groups of males . " They come in in and were trying to challenge for territory and got their butts kick , " Braczkowski say . " So that ’s why they swim back . "

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Jacob and Tibu are tight supervise and are seen on a everyday basis . Since the footage was fascinate , they have swum back across the groove once again on their pursuit for sexual activity . " The guy are like ' screw it , we have to swim , we have to witness female , this is the only way we ’re going to reproduce … it ’s either our genes survive on or we die , ' " Braczkowski allege .

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