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"Martas" is a form of "marta", a noun which is often translated as "marten". "Ciervos" is a form of "ciervo", a noun which is often translated as "deer". Learn more about the difference between "martas" and "ciervos" below.
la marta(
mahr
-
tah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
1. (animal)
b. pine marten
La cola de la marta mide aproximadamente 25 centímetros.The tail of the pine marten is approximately 25 centimeters long.
2. (material)
el ciervo, la cierva(
syehr
-
boh
)This means that the noun can be masculine or feminine, depending on the gender of the noun it refers to (e.g., el doctor, la doctora).
1. (animal)
e. elk (Cervus canadensis or Cervus elaphus)
En el bosque, vimos un ciervo cerca del río.In the forest, we saw an elk near the river.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
2. (culinary)
a. venison
En este restaurante sirven ciervo y otra caza.In this restaurant they serve venison and other game.