article_snippet.sent: Dr Sabrina Krief, a lecturer at the National Museum of Natural History in Paris, and her colleagues had caught.
article_snippet.sent: Marie Cibot, a biologist at the National Museum of Natural History in Paris, who led the work, said the spread of road infrastructure in Africa was posing a growing threat to wildlife in many countries.
article_snippet.sent: Marie Cibot, a biologist at the National Museum of Natural History in Paris, who led the work said: 'Although the asphalted road represents a substantial threat to crossing animals, chimpanzees took into account this risk. '
article_snippet.sent: The researchers said The researchers saw several different primates killed on the roads in the past year.
article_snippet.sent: The researchers, whose work is published in the American Journal of Primatology, have appealed for measures to help reduce the impact roads were having on wildlife.
article_snippet.sent: Miss Cibot, who worked on the study with Dr Sabrina Krief, a lecturer at the National Museum of Natural History in Paris and the Great Ape Conservation Project in Uganda, said bridges or underpasses could be provided to help keep chimps safe.
article_snippet.sent: The team are hoping to work with the Ugandan authorities to test new safety measures.
highlights_snippet.sent: Scientists want to test underpasses and bridges to let chimps cross safely .