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In the horse breeding industry, the term "half-brother" or "half-sister" only describes horses which have the same dam, but different sires. [6] Horses with the same sire but different dams are simply said to be "by the same sire", and no sibling relationship is implied. [7] "Full" (or "own") siblings have both the same dam and the same sire.
Again, however, this is not applicable to all sexual organisms. There are numerous species which are sexual but do not have a genetic-loss problem because they do not produce males or females. Yeast, for example, are isogamous sexual organisms which have two mating types which fuse and recombine their haploid genomes. Both sexes reproduce ...
The evolution of the horse, a mammal of the family Equidae, occurred over a geologic time scale of 50 million years, transforming the small, dog-sized, [1] forest-dwelling Eohippus into the modern horse. Paleozoologists have been able to piece together a more complete outline of the evolutionary lineage of the
The height of horses is measured at the highest point of the withers, where the neck meets the back. [23] This point is used because it is a stable point of the anatomy, unlike the head or neck, which move up and down in relation to the body of the horse.
Other than being hunted, marine mammals can be killed as bycatch from fisheries, where for example they can become entangled in nets and drown or starve. Increased ocean traffic causes collisions between fast ocean vessels and large marine mammals. Habitat degradation also threatens marine mammals and their ability to find and catch food.
“I just love to make people happy,” Stephen Harmon said. “I believe that the more people you help, the better off you are.” ‘Bringing the country to the city.’
A broodmare. Note slight distension of belly, indicating either early pregnancy or recent foaling. A mare is an adult female horse or other equine. [1] In most cases, a mare is a female horse over the age of three, and a filly is a female horse three and younger.
The commission received more than 34,000 public comments opposing the harvest of female horseshoe crabs. Leading scientists also have denounced the commission’s computer model, which recommends ...