Another elm has no seeds. Are different trees male or female, or are they both? We sit under that huge elm, and note a tiny leaf less than a centimetre across, about two feet up on the trunk. The tree is sensing
Self-incompatibilityThe African baobab's ( Adansonia digitata ) breeding system has not been experimentally verified, and it remains unclear why such a stark disparity exists between 'male' trees that produce few, if any, fruit, and 'female' trees that produce many fruit consistently year after ...
In Mozambique, researchers are racing to understand the genetics of elephants born without tusks—and the consequences of the trait.
These sounds can often be heard as far as a half-mile awayAfter a female and male peeper mate, the female lays her eggs in water and spends the remainder of the year in the forest. During the winter, they sleep under logs or behind loose bark on trees. The music dies down during ...
Male ( 公的 ) elephants live alone or in small groups. Female elephants live together with their babies.An Elephant's Food Elephants must eat most of the day to get enough food they need. They eat grasses, leaves,and bark(树皮) from trees. An elephant must drink lots of water, too....
Female ornaments are often reduced, male-like traits. Although these were long perceived as non-functional, it is now broadly accepted that female ornaments can be adaptive. However, it is unclear whether this is as common in females as it is in males, a
Date Palms are unique in that they are either a male tree or a female tree. The male trees produce pollen, and the female trees produce flowers. Unfortunately, neither birds or bees are attracted to the flowers, so the females have to be hand pollinated....
Male(雄性的) elephants live alone or in small groups. Female elephants live together with their babies.An Elephant's Food Elephants must eat most of the day to get enough food they need. They eat grasses, leaves,and bark (树皮) from trees. An elephant must drink lots of water, too.An...
Male (公) elephants live alone or in small groups.Female elephants live together with their babies.Elephants' food Elephants must eat most of the day to get enough food. They eat grass, leaves and bark(树皮) from trees. An elephant must drink lots of water, too.▲An elephant's trunk ...
But other scientists say that further research should be done. Differences within bonobo and chimpanzee societies—the former being female-led, the latter being male-led—create different contexts for how and why the primates behave as they do, such as nego...