Katak Baru dari Sulawesi Mengejutkan Dunia karena Bisa Melahirkan

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pend1KOMPAS.com — Katak jenis baru dari Sulawesi mengejutkan dunia. Bila biasanya katak berkembang biak dengan cara bertelur, katak ini berkembang biak dengan melahirkan.

Katak itu ditemukan oleh ahli herpetologi dari Institut Teknologi Bandung (ITB), Djoko Tjahjono Iskandar, serta rekannya, Ben J Evans, dari McMaster University di Kanada, dan Jimmy A McGuire dari Universityy of California, Berkeley.

Karena mampu melahirkan kecebong, katak baru ini dimasukkan dalam golongan hewan yang berkembang biak secara ovovivipar.

Ovovivipar berbeda dengan ovipar (bertelur) dan vivipar (melahirkan). Ovovivipar berarti embrio tetap berkembang di telur yang berada di dalam tubuh induk, tetapi keluar dari tubuh induk dalam kondisi sudah menetas.

Spesies katak baru ini dinamai Limnonectes larvaepartus, sesuai dengan sifatnya, mampu melahirkan larva (larvae: larva atau kecebong, partus: melahirkan).

Dalam publikasinya di jurnal PLOS ONE pada Rabu (31/12/2014) lalu, Djoko menyatakan bahwa jenis ini sudah dijumpai sejak dia melakukan survei keragaman katak di Sulawesi pada tahun 1996 lalu.

Namun, identitas katak ini sebagai spesies baru belum bisa ditetapkan sebab belum ada bukti perilaku melahirkan.

Perilaku melahirkan kemudian berhasil dilihat saat Djoko dan tim melakukan studi lapangan di Sulawesi tahun ini. Satu kali kesempatan, Djoko menyaksikan langsung katak melahirkan di genggaman tangan.

Dalam kesempatan lain, Djoko dan tim menjumpai adanya kecebong hidup dalam bagian sistem reproduksi bernama oviduk serta dalam tas plastik tempat tim mengoleksi katak.

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