xiphosura species
古代剑形甲壳类动物
the xiphosura
剑形甲壳类动物化石
xiphosura fossils
现存剑形甲壳类动物
xiphosura blood
剑形甲壳类动物物种
xiphosura study
剑形甲壳类动物祖先
xiphosura specimens
海洋剑形甲壳类动物
ancient xiphosura
剑形甲壳类动物
xiphosura anatomy
剑形甲壳类动物外骨骼
xiphosura habitat
研究剑形甲壳类动物
xiphosura evolution
稀有剑形甲壳类动物
the xiphosura species has survived for millions of years with little evolutionary change.
刺形类动物物种已经生存了数百万年，几乎没有进化变化。
marine biologists study xiphosura specimens to understand ancient arthropod biology.
海洋生物学家研究刺形类动物标本，以了解古代节肢动物生物学。
the xiphosura's blue blood is valuable for medical research and testing.
刺形类动物的蓝色血液对医学研究和测试具有价值。
during spawning season, thousands of xiphosura gather on coastal beaches.
在繁殖季节，成千上万的刺形类动物聚集在沿海海滩上。
the xiphosura's hard carapace provides protection against predators.
刺形类动物坚硬的外壳为其提供了抵御捕食者的保护。
fossil records show that xiphosura existed over 300 million years ago.
化石记录表明，刺形类动物存在于3亿多年前。
conservation efforts aim to protect xiphosura populations from declining.
保护工作旨在保护刺形类动物种群免受下降的影响。
the xiphosura undergoes molting as it grows larger throughout its life.
随着它一生中不断长大，刺形类动物会蜕皮。
researchers have discovered new information about xiphosura reproductive cycles.
研究人员发现有关刺形类动物繁殖周期的新信息。
xiphosura eggs serve as an important food source for migratory birds.
刺形类动物的卵是候鸟的重要食物来源。
the ancient xiphosura is often called a living fossil by scientists.
这种古老的刺形类动物通常被称为“活化石”，由科学家们称呼。
some species of xiphosura can live up to 20 years in the wild.
某些种类的刺形类动物可以在野外生存长达20年。
xiphosura species
古代剑形甲壳类动物
the xiphosura
剑形甲壳类动物化石
xiphosura fossils
现存剑形甲壳类动物
xiphosura blood
剑形甲壳类动物物种
xiphosura study
剑形甲壳类动物祖先
xiphosura specimens
海洋剑形甲壳类动物
ancient xiphosura
剑形甲壳类动物
xiphosura anatomy
剑形甲壳类动物外骨骼
xiphosura habitat
研究剑形甲壳类动物
xiphosura evolution
稀有剑形甲壳类动物
the xiphosura species has survived for millions of years with little evolutionary change.
刺形类动物物种已经生存了数百万年，几乎没有进化变化。
marine biologists study xiphosura specimens to understand ancient arthropod biology.
海洋生物学家研究刺形类动物标本，以了解古代节肢动物生物学。
the xiphosura's blue blood is valuable for medical research and testing.
刺形类动物的蓝色血液对医学研究和测试具有价值。
during spawning season, thousands of xiphosura gather on coastal beaches.
在繁殖季节，成千上万的刺形类动物聚集在沿海海滩上。
the xiphosura's hard carapace provides protection against predators.
刺形类动物坚硬的外壳为其提供了抵御捕食者的保护。
fossil records show that xiphosura existed over 300 million years ago.
化石记录表明，刺形类动物存在于3亿多年前。
conservation efforts aim to protect xiphosura populations from declining.
保护工作旨在保护刺形类动物种群免受下降的影响。
the xiphosura undergoes molting as it grows larger throughout its life.
随着它一生中不断长大，刺形类动物会蜕皮。
researchers have discovered new information about xiphosura reproductive cycles.
研究人员发现有关刺形类动物繁殖周期的新信息。
xiphosura eggs serve as an important food source for migratory birds.
刺形类动物的卵是候鸟的重要食物来源。
the ancient xiphosura is often called a living fossil by scientists.
这种古老的刺形类动物通常被称为“活化石”，由科学家们称呼。
some species of xiphosura can live up to 20 years in the wild.
某些种类的刺形类动物可以在野外生存长达20年。
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