Wednesday Creature Feature ~ December 9, 2020


Half-male, Half-female Songbird Discovered in Pennsylvania!The grosbeak displayed male coloration on the right side of its body, while female coloration dominated on the left side.

Researchers recently made a discovery of a songbird. They found that it was male on the right side and female on the left side. Usually they can tell by the colors of the bird what the sex of the animal is but this bird had both colors of both genders. This condition is called bilateral gynadromorphism.

Unfertilized eggs typically contain one sex chromosome: a Z or a W (male birds are ZZ, while females are ZW). But very rarely, an egg develops with two nuclei, one containing a Z chromosome and the other a W chromosome. If this egg is fertilized, it unites with sperm that carry the Z chromosome to produce an embryo with some cells that are ZZ, producing male traits, and some that are ZW, producing female traits, Natural History Magazine reported.

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Sea Turtle Lays Eggs Unseasonably Late!

A green sea turtle has surprised a lot of people by laying eggs a lot later than they usually would. This occurred in North Carolina’s Outer Banks. It marks the first time in more than 20 years that a turtle has laid eggs past summer time.

Female sea turtles typically lay nests during the warmer months. Nests laid after Aug. 20 are considered late.

Meaghan Johnson of the National Park Service said that the baby turtles are unlikely to survive. But she said they could stand a chance if there’s a mild winter.

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Rescued Puppies! 





Credit for stories ~ corresponds with links

Editor ~ Chelsea Dugger


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