Why Do Female Elephants Not Have Tusks at Kenneth Keene blog

Why Do Female Elephants Not Have Tusks. Most female african elephants have tusks, but recently there has been a rise in tuskless elephants. But until now there has been no direct genetic evidence indicating how this was happening, or why the trait was occurring exclusively in female elephants. Observers in areas with heavy poaching had previously noticed an increased incidence of african elephants without their iconic tusks. Half the females were naturally tuskless — they simply never developed tusks. Using poole’s database, they further confirmed that, with a single exception, female elephants with two tusks had never been observed to have a tuskless baby. After taking blood samples of 18 female elephants, with and without tusks, the researchers sequenced their genomes. Normally both male and female african elephants have tusks, which are really a pair of massive teeth. The survivors were likely to share a key characteristic: Tuskless elephants eluded poaching during the civil war and passed this trait to many of their daughters. A new study has found intense poaching resulted in selection of genes for tuskless. Only 2 to 4 percent of female african elephants never develop tusks in the wild.

Ivory poaching has triggered a surge in elephants born without tusks
from www.popsci.com

Observers in areas with heavy poaching had previously noticed an increased incidence of african elephants without their iconic tusks. Using poole’s database, they further confirmed that, with a single exception, female elephants with two tusks had never been observed to have a tuskless baby. After taking blood samples of 18 female elephants, with and without tusks, the researchers sequenced their genomes. Tuskless elephants eluded poaching during the civil war and passed this trait to many of their daughters. Half the females were naturally tuskless — they simply never developed tusks. But until now there has been no direct genetic evidence indicating how this was happening, or why the trait was occurring exclusively in female elephants. A new study has found intense poaching resulted in selection of genes for tuskless. Normally both male and female african elephants have tusks, which are really a pair of massive teeth. Only 2 to 4 percent of female african elephants never develop tusks in the wild. Most female african elephants have tusks, but recently there has been a rise in tuskless elephants.

Ivory poaching has triggered a surge in elephants born without tusks

Why Do Female Elephants Not Have Tusks Observers in areas with heavy poaching had previously noticed an increased incidence of african elephants without their iconic tusks. Tuskless elephants eluded poaching during the civil war and passed this trait to many of their daughters. Most female african elephants have tusks, but recently there has been a rise in tuskless elephants. Using poole’s database, they further confirmed that, with a single exception, female elephants with two tusks had never been observed to have a tuskless baby. The survivors were likely to share a key characteristic: Observers in areas with heavy poaching had previously noticed an increased incidence of african elephants without their iconic tusks. Only 2 to 4 percent of female african elephants never develop tusks in the wild. After taking blood samples of 18 female elephants, with and without tusks, the researchers sequenced their genomes. Half the females were naturally tuskless — they simply never developed tusks. Normally both male and female african elephants have tusks, which are really a pair of massive teeth. But until now there has been no direct genetic evidence indicating how this was happening, or why the trait was occurring exclusively in female elephants. A new study has found intense poaching resulted in selection of genes for tuskless.

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